Add API breaks in 2021 (#351)
Add API breaks in 2021 (#351)

Add API breaks in 2021 caused by https://github.com/JetBrains/intellij-community/commit/0c30c2aed9237123b42154bae40bbec01eedbf61
JetBrains/intellij-sdk-docs,JetBrains/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,JetBrains/intellij-sdk-docs,artspb/intellij-sdk-docs