chore(deps): bump kotlin_version from 1.6.10 to 1.6.21 in /ApiDemos/kotlin (#931)
chore(deps): bump kotlin_version from 1.6.10 to 1.6.21 in /ApiDemos/kotlin (#931)

Bumps `kotlin_version` from 1.6.10 to 1.6.21.
Updates `kotlin-gradle-plugin` from 1.6.10 to 1.6.21
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/JetBrains/kotlin/releases">kotlin-gradle-plugin's releases</a>.</em></p>
<blockquote>
<h2>Kotlin 1.6.21</h2>
<h2>Changelog</h2>
<h3>Compiler</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51979"><code>KT-51979</code></a> &quot;AssertionError: No modifier list, but modifier has been found by the analyzer&quot; exception on incorrect Java interface override</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51893"><code>KT-51893</code></a> Duplicated [OVERRIDE_DEPRECATION] on overridden properties</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51927"><code>KT-51927</code></a> Native: <code>The symbol of unexpected type encountered during IR deserialization</code> error when multiple libraries have non-conflicting declarations with the same name</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51843"><code>KT-51843</code></a> Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51672"><code>KT-51672</code></a> JVM IR: Inline class mangling issue in interface default methods split across multiple modules</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51711"><code>KT-51711</code></a> Compiler warning is displayed in case there is 'if' else branch used with elvis</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49317"><code>KT-49317</code></a> &quot;IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA&quot; with parameter of suspend type with the default parameter</li>
</ul>
<h3>IDE. Native</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KTIJ-20819"><code>KTIJ-20819</code></a> Native debugging support: &quot;Debug is impossible without lldb binaries required by Kotlin/Native&quot; on &quot;Attach to process&quot;</li>
</ul>
<h3>JavaScript</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-52010"><code>KT-52010</code></a> K/JS IR: both flows execute when using elvis operator</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51973"><code>KT-51973</code></a> KJS / IR overridden properties of inherited interface missing</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-50504"><code>KT-50504</code></a> KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields</li>
</ul>
<h3>Tools. Gradle</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51837"><code>KT-51837</code></a> kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.</li>
</ul>
<h3>Tools. Gradle. Multiplatform</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51810"><code>KT-51810</code></a> MPP / Gradle: Dependency locking fails with 1.6.20</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51765"><code>KT-51765</code></a> com.android.lint in multiplatform project without android target should not trigger warning</li>
</ul>
<h2>Checksums</h2>
<table>
<thead>
<tr>
<th>File</th>
<th>Sha256</th>
</tr>
</thead>
<tbody>
<tr>
<td>kotlin-compiler-1.6.21.zip</td>
<td>632166fed89f3f430482f5aa07f2e20b923b72ef688c8f5a7df3aa1502c6d8ba</td>
</tr>
<tr>
<td>kotlin-native-linux-x86_64-1.6.21.tar.gz</td>
<td>af51f6ae244bb19979fbae6dc3afdca7bae42568d6a33f0fa331edd665a611fa</td>
</tr>
<tr>
<td>kotlin-native-macos-x86_64-1.6.21.tar.gz</td>
<td>ce74cc3bc874a42e9b912515626c563dee075503d0c3f55c24cd75724986f020</td>
</tr>
<tr>
<td>kotlin-native-macos-aarch64-1.6.21.tar.gz</td>
<td>92426f943b4ad18fb37a1b7ef5f2d7d872f67f228e232a34a9890993edf9b4c5</td>
</tr>
<tr>
<td>kotlin-native-windows-x86_64-1.6.21.zip</td>
<td>ac520bf2f66197fec1ff6c666432cb908bf49e39b9266dd6979fa6e2c0294206</td>
</tr>
</tbody>
</table>
<h2>Kotlin 1.6.20</h2>
<h2>Changelog</h2>
<h3>Compiler</h3>
<h4>New Features</h4>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-48217"><code>KT-48217</code></a> Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/JetBrains/kotlin/blob/v1.6.21/ChangeLog.md">kotlin-gradle-plugin's changelog</a>.</em></p>
<blockquote>
<h2>1.6.21</h2>
<h3>Compiler</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51979"><code>KT-51979</code></a> &quot;AssertionError: No modifier list, but modifier has been found by the analyzer&quot; exception on incorrect Java interface override</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51893"><code>KT-51893</code></a> Duplicated [OVERRIDE_DEPRECATION] on overridden properties</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51927"><code>KT-51927</code></a> Native: <code>The symbol of unexpected type encountered during IR deserialization</code> error when multiple libraries have non-conflicting declarations with the same name</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51843"><code>KT-51843</code></a> Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51672"><code>KT-51672</code></a> JVM IR: Inline class mangling issue in interface default methods split across multiple modules</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51711"><code>KT-51711</code></a> Compiler warning is displayed in case there is 'if' else branch used with elvis</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49317"><code>KT-49317</code></a> &quot;IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA&quot; with parameter of suspend type with the default parameter</li>
</ul>
<h3>IDE. Native</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KTIJ-20819"><code>KTIJ-20819</code></a> Native debugging support: &quot;Debug is impossible without lldb binaries required by Kotlin/Native&quot; on &quot;Attach to process&quot;</li>
</ul>
<h3>JavaScript</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-52010"><code>KT-52010</code></a> K/JS IR: both flows execute when using elvis operator</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51973"><code>KT-51973</code></a> KJS / IR overridden properties of inherited interface missing</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-50504"><code>KT-50504</code></a> KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields</li>
</ul>
<h3>Tools. Gradle</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51837"><code>KT-51837</code></a> kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.</li>
</ul>
<h3>Tools. Gradle. Multiplatform</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51810"><code>KT-51810</code></a> MPP / Gradle: Dependency locking fails with 1.6.20</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51765"><code>KT-51765</code></a> com.android.lint in multiplatform project without android target should not trigger warning</li>
</ul>
<h2>1.6.20</h2>
<h3>Compiler</h3>
<h4>New Features</h4>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-48217"><code>KT-48217</code></a> Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49929"><code>KT-49929</code></a> [FIR] Support programmatic creation of annotation class instances</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49276"><code>KT-49276</code></a> Warn about potential overload resolution change if Range/Progression starts implementing Collection</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-47902"><code>KT-47902</code></a> Do not propagate method deprecation through overrides</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49857"><code>KT-49857</code></a> Require Xcode 13 for building Kotlin/Native compiler</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-47701"><code>KT-47701</code></a> Support instantiation of annotation classes on Native</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-46085"><code>KT-46085</code></a> Support experimental parallel compilation of a single module in the JVM backend</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-46603"><code>KT-46603</code></a> Generate SAM-conversions to Java interfaces extending 'java.io.Serializable' as serializable using java.lang.invoke.LambdaMetafactory</li>
</ul>
<h4>Performance Improvements</h4>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-50156"><code>KT-50156</code></a> HMPP: Slow frontend/ide performance in OKIO (ExpectActualDeclarationChecker)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/JetBrains/kotlin/commit/ed3967eb585b63acdc7339726908bc0f2e6d8101"><code>ed3967e</code></a> Add changelog for 1.6.21</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/26487d283d3534a5c227845de491a08c5a6388e0"><code>26487d2</code></a> JS IR: materialize Unit in lambdas</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/4cbf375faa171c7c8611bfb625dbd6fd723c8b77"><code>4cbf375</code></a> Add workaround for Gradle dependency resolution error</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/a16798db7e9c3c506144b51333d7d16f2367ebd5"><code>a16798d</code></a> Force using 2.8.9+ gson version as a dependency</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/3ac8d951cbf4979a2b5ea064a053f31546c1954c"><code>3ac8d95</code></a> Fix exception when reporting WRONG_TYPE_PARAMETER_NULLABILITY_FOR_JAVA_OVERRIDE</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/2f4afe05e9c800d68a5d6203e7a216cb3804ce35"><code>2f4afe0</code></a> Fix for KT-51765</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/5584a5006dcfd29c10df36116ffe582ea8034bb6"><code>5584a50</code></a> [FE 1.0] Don't report OVERRIDE_DEPRECATION on default accessors of deprecated...</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/a3ed332dbe8e10a7df033d2cbab81b04858cc52d"><code>a3ed332</code></a> rrr/1.6.20/ilgonmic/kt-51973</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/368465e24ba13894db1af3b2b5055b7dc77d8220"><code>368465e</code></a> JVM IR: Resolve fake overrides during inline class mangling</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/0c80614441652545d987dbf4e974b3b56ae18c1c"><code>0c80614</code></a> [FE 1.0] Fix false-negative INVALID_IF_AS_EXPRESSION_WARNING and NO_ELSE_IN_W...</li>
<li>Additional commits viewable in <a href="https://github.com/JetBrains/kotlin/compare/v1.6.10...v1.6.21">compare view</a></li>
</ul>
</details>
<br />

Updates `kotlin-stdlib-jdk7` from 1.6.10 to 1.6.21
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/JetBrains/kotlin/releases">kotlin-stdlib-jdk7's releases</a>.</em></p>
<blockquote>
<h2>Kotlin 1.6.21</h2>
<h2>Changelog</h2>
<h3>Compiler</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51979"><code>KT-51979</code></a> &quot;AssertionError: No modifier list, but modifier has been found by the analyzer&quot; exception on incorrect Java interface override</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51893"><code>KT-51893</code></a> Duplicated [OVERRIDE_DEPRECATION] on overridden properties</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51927"><code>KT-51927</code></a> Native: <code>The symbol of unexpected type encountered during IR deserialization</code> error when multiple libraries have non-conflicting declarations with the same name</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51843"><code>KT-51843</code></a> Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51672"><code>KT-51672</code></a> JVM IR: Inline class mangling issue in interface default methods split across multiple modules</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51711"><code>KT-51711</code></a> Compiler warning is displayed in case there is 'if' else branch used with elvis</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49317"><code>KT-49317</code></a> &quot;IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA&quot; with parameter of suspend type with the default parameter</li>
</ul>
<h3>IDE. Native</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KTIJ-20819"><code>KTIJ-20819</code></a> Native debugging support: &quot;Debug is impossible without lldb binaries required by Kotlin/Native&quot; on &quot;Attach to process&quot;</li>
</ul>
<h3>JavaScript</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-52010"><code>KT-52010</code></a> K/JS IR: both flows execute when using elvis operator</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51973"><code>KT-51973</code></a> KJS / IR overridden properties of inherited interface missing</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-50504"><code>KT-50504</code></a> KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields</li>
</ul>
<h3>Tools. Gradle</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51837"><code>KT-51837</code></a> kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.</li>
</ul>
<h3>Tools. Gradle. Multiplatform</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51810"><code>KT-51810</code></a> MPP / Gradle: Dependency locking fails with 1.6.20</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51765"><code>KT-51765</code></a> com.android.lint in multiplatform project without android target should not trigger warning</li>
</ul>
<h2>Checksums</h2>
<table>
<thead>
<tr>
<th>File</th>
<th>Sha256</th>
</tr>
</thead>
<tbody>
<tr>
<td>kotlin-compiler-1.6.21.zip</td>
<td>632166fed89f3f430482f5aa07f2e20b923b72ef688c8f5a7df3aa1502c6d8ba</td>
</tr>
<tr>
<td>kotlin-native-linux-x86_64-1.6.21.tar.gz</td>
<td>af51f6ae244bb19979fbae6dc3afdca7bae42568d6a33f0fa331edd665a611fa</td>
</tr>
<tr>
<td>kotlin-native-macos-x86_64-1.6.21.tar.gz</td>
<td>ce74cc3bc874a42e9b912515626c563dee075503d0c3f55c24cd75724986f020</td>
</tr>
<tr>
<td>kotlin-native-macos-aarch64-1.6.21.tar.gz</td>
<td>92426f943b4ad18fb37a1b7ef5f2d7d872f67f228e232a34a9890993edf9b4c5</td>
</tr>
<tr>
<td>kotlin-native-windows-x86_64-1.6.21.zip</td>
<td>ac520bf2f66197fec1ff6c666432cb908bf49e39b9266dd6979fa6e2c0294206</td>
</tr>
</tbody>
</table>
<h2>Kotlin 1.6.20</h2>
<h2>Changelog</h2>
<h3>Compiler</h3>
<h4>New Features</h4>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-48217"><code>KT-48217</code></a> Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/JetBrains/kotlin/blob/v1.6.21/ChangeLog.md">kotlin-stdlib-jdk7's changelog</a>.</em></p>
<blockquote>
<h2>1.6.21</h2>
<h3>Compiler</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51979"><code>KT-51979</code></a> &quot;AssertionError: No modifier list, but modifier has been found by the analyzer&quot; exception on incorrect Java interface override</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51893"><code>KT-51893</code></a> Duplicated [OVERRIDE_DEPRECATION] on overridden properties</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51927"><code>KT-51927</code></a> Native: <code>The symbol of unexpected type encountered during IR deserialization</code> error when multiple libraries have non-conflicting declarations with the same name</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51843"><code>KT-51843</code></a> Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51672"><code>KT-51672</code></a> JVM IR: Inline class mangling issue in interface default methods split across multiple modules</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51711"><code>KT-51711</code></a> Compiler warning is displayed in case there is 'if' else branch used with elvis</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49317"><code>KT-49317</code></a> &quot;IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA&quot; with parameter of suspend type with the default parameter</li>
</ul>
<h3>IDE. Native</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KTIJ-20819"><code>KTIJ-20819</code></a> Native debugging support: &quot;Debug is impossible without lldb binaries required by Kotlin/Native&quot; on &quot;Attach to process&quot;</li>
</ul>
<h3>JavaScript</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-52010"><code>KT-52010</code></a> K/JS IR: both flows execute when using elvis operator</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51973"><code>KT-51973</code></a> KJS / IR overridden properties of inherited interface missing</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-50504"><code>KT-50504</code></a> KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields</li>
</ul>
<h3>Tools. Gradle</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51837"><code>KT-51837</code></a> kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.</li>
</ul>
<h3>Tools. Gradle. Multiplatform</h3>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51810"><code>KT-51810</code></a> MPP / Gradle: Dependency locking fails with 1.6.20</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-51765"><code>KT-51765</code></a> com.android.lint in multiplatform project without android target should not trigger warning</li>
</ul>
<h2>1.6.20</h2>
<h3>Compiler</h3>
<h4>New Features</h4>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-48217"><code>KT-48217</code></a> Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49929"><code>KT-49929</code></a> [FIR] Support programmatic creation of annotation class instances</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49276"><code>KT-49276</code></a> Warn about potential overload resolution change if Range/Progression starts implementing Collection</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-47902"><code>KT-47902</code></a> Do not propagate method deprecation through overrides</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-49857"><code>KT-49857</code></a> Require Xcode 13 for building Kotlin/Native compiler</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-47701"><code>KT-47701</code></a> Support instantiation of annotation classes on Native</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-46085"><code>KT-46085</code></a> Support experimental parallel compilation of a single module in the JVM backend</li>
<li><a href="https://youtrack.jetbrains.com/issue/KT-46603"><code>KT-46603</code></a> Generate SAM-conversions to Java interfaces extending 'java.io.Serializable' as serializable using java.lang.invoke.LambdaMetafactory</li>
</ul>
<h4>Performance Improvements</h4>
<ul>
<li><a href="https://youtrack.jetbrains.com/issue/KT-50156"><code>KT-50156</code></a> HMPP: Slow frontend/ide performance in OKIO (ExpectActualDeclarationChecker)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/JetBrains/kotlin/commit/ed3967eb585b63acdc7339726908bc0f2e6d8101"><code>ed3967e</code></a> Add changelog for 1.6.21</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/26487d283d3534a5c227845de491a08c5a6388e0"><code>26487d2</code></a> JS IR: materialize Unit in lambdas</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/4cbf375faa171c7c8611bfb625dbd6fd723c8b77"><code>4cbf375</code></a> Add workaround for Gradle dependency resolution error</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/a16798db7e9c3c506144b51333d7d16f2367ebd5"><code>a16798d</code></a> Force using 2.8.9+ gson version as a dependency</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/3ac8d951cbf4979a2b5ea064a053f31546c1954c"><code>3ac8d95</code></a> Fix exception when reporting WRONG_TYPE_PARAMETER_NULLABILITY_FOR_JAVA_OVERRIDE</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/2f4afe05e9c800d68a5d6203e7a216cb3804ce35"><code>2f4afe0</code></a> Fix for KT-51765</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/5584a5006dcfd29c10df36116ffe582ea8034bb6"><code>5584a50</code></a> [FE 1.0] Don't report OVERRIDE_DEPRECATION on default accessors of deprecated...</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/a3ed332dbe8e10a7df033d2cbab81b04858cc52d"><code>a3ed332</code></a> rrr/1.6.20/ilgonmic/kt-51973</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/368465e24ba13894db1af3b2b5055b7dc77d8220"><code>368465e</code></a> JVM IR: Resolve fake overrides during inline class mangling</li>
<li><a href="https://github.com/JetBrains/kotlin/commit/0c80614441652545d987dbf4e974b3b56ae18c1c"><code>0c80614</code></a> [FE 1.0] Fix false-negative INVALID_IF_AS_EXPRESSION_WARNING and NO_ELSE_IN_W...</li>
<li>Additional commits viewable in <a href="https://github.com/JetBrains/kotlin/compare/v1.6.10...v1.6.21">compare view</a></li>
</ul>
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