Auto merge of #27825 - servo:dependabot/cargo/rustc-demangle-0.1.18, r=jdm
Auto merge of #27825 - servo:dependabot/cargo/rustc-demangle-0.1.18, r=jdm

Bump rustc-demangle from 0.1.16 to 0.1.18

Bumps [rustc-demangle](https://github.com/alexcrichton/rustc-demangle) from 0.1.16 to 0.1.18.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/8c700799ee17aa026c5b9386df74104d6bffd165"><code>8c70079</code></a> Bump to 0.1.18</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/7d2f5a42e8d7094ac709a341e7e37ac9dd1a0cf8"><code>7d2f5a4</code></a> Print <code>char</code> using <code>{:?}</code> (<a href="https://github-redirect.dependabot.com/alexcrichton/rustc-demangle/issues/41">#41</a>)</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/5119b5f76b2b30f7b47839837d46ffc6c9b3d6fe"><code>5119b5f</code></a> Bump to 0.1.17</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/7551efa82f6f00f1fe4c0aaa58707b8a83de8a27"><code>7551efa</code></a> Elide the type when the const value is a placeholder <code>p</code> (<a href="https://github-redirect.dependabot.com/alexcrichton/rustc-demangle/issues/40">#40</a>)</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/6e407b53775ed4d24331fe457a735afb73cdf737"><code>6e407b5</code></a> Add support for <code>min_const_generics</code> constants (<a href="https://github-redirect.dependabot.com/alexcrichton/rustc-demangle/issues/39">#39</a>)</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/c4e3ab004edda9fbe5e2d8149d2b62c10668d10b"><code>c4e3ab0</code></a> Add some docs about the C API</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/1ccd9b42764b4da98666628dfa933b62d5c79592"><code>1ccd9b4</code></a> C API wrapper (<a href="https://github-redirect.dependabot.com/alexcrichton/rustc-demangle/issues/14">#14</a>)</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/b2f44f88dcb6f045257ae892545f2fce6c5b5ceb"><code>b2f44f8</code></a> use if let and while let</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/e9a47da0b06e41098e5afaa2f07b2c47c0254c80"><code>e9a47da</code></a> apply some style fix from clippy</li>
<li><a href="https://github.com/alexcrichton/rustc-demangle/commit/9a2ef96710340c4fc6695c503bc6447b339dfc61"><code>9a2ef96</code></a> replace try! with ?</li>
<li>Additional commits viewable in <a href="https://github.com/alexcrichton/rustc-demangle/compare/0.1.16...0.1.18">compare view</a></li>
</ul>
</details>
<br />

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[//]: # (dependabot-automerge-end)

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