Bump kotlin.version from 1.6.20 to 1.6.21

[dependabot]

Bumps kotlin.version from 1.6.20 to 1.6.21.
Updates kotlin-bom from 1.6.20 to 1.6.21

Release notes

Sourced from kotlin-bom's releases.

Kotlin 1.6.21

Changelog

Compiler

• KT-51979 "AssertionError: No modifier list, but modifier has been found by the analyzer" exception on incorrect Java interface override
• KT-51893 Duplicated [OVERRIDE_DEPRECATION] on overridden properties
• KT-51927 Native: The symbol of unexpected type encountered during IR deserialization error when multiple libraries have non-conflicting declarations with the same name
• KT-51843 Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags
• KT-51672 JVM IR: Inline class mangling issue in interface default methods split across multiple modules
• KT-51711 Compiler warning is displayed in case there is 'if' else branch used with elvis
• KT-49317 "IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA" with parameter of suspend type with the default parameter

IDE. Native

• KTIJ-20819 Native debugging support: "Debug is impossible without lldb binaries required by Kotlin/Native" on "Attach to process"

JavaScript

• KT-52010 K/JS IR: both flows execute when using elvis operator
• KT-51973 KJS / IR overridden properties of inherited interface missing
• KT-50504 KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields

Tools. Gradle

• KT-51837 kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.

Tools. Gradle. Multiplatform

• KT-51810 MPP / Gradle: Dependency locking fails with 1.6.20
• KT-51765 com.android.lint in multiplatform project without android target should not trigger warning

Checksums

File	Sha256
kotlin-compiler-1.6.21.zip	632166fed89f3f430482f5aa07f2e20b923b72ef688c8f5a7df3aa1502c6d8ba
kotlin-native-linux-x86_64-1.6.21.tar.gz	af51f6ae244bb19979fbae6dc3afdca7bae42568d6a33f0fa331edd665a611fa
kotlin-native-macos-x86_64-1.6.21.tar.gz	ce74cc3bc874a42e9b912515626c563dee075503d0c3f55c24cd75724986f020
kotlin-native-macos-aarch64-1.6.21.tar.gz	92426f943b4ad18fb37a1b7ef5f2d7d872f67f228e232a34a9890993edf9b4c5
kotlin-native-windows-x86_64-1.6.21.zip	ac520bf2f66197fec1ff6c666432cb908bf49e39b9266dd6979fa6e2c0294206

Changelog

Sourced from kotlin-bom's changelog.

1.6.21

Compiler

• KT-51979 "AssertionError: No modifier list, but modifier has been found by the analyzer" exception on incorrect Java interface override
• KT-51893 Duplicated [OVERRIDE_DEPRECATION] on overridden properties
• KT-51927 Native: The symbol of unexpected type encountered during IR deserialization error when multiple libraries have non-conflicting declarations with the same name
• KT-51843 Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags
• KT-51672 JVM IR: Inline class mangling issue in interface default methods split across multiple modules
• KT-51711 Compiler warning is displayed in case there is 'if' else branch used with elvis
• KT-49317 "IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA" with parameter of suspend type with the default parameter

IDE. Native

• KTIJ-20819 Native debugging support: "Debug is impossible without lldb binaries required by Kotlin/Native" on "Attach to process"

JavaScript

• KT-52010 K/JS IR: both flows execute when using elvis operator
• KT-51973 KJS / IR overridden properties of inherited interface missing
• KT-50504 KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields

Tools. Gradle

• KT-51837 kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.

Tools. Gradle. Multiplatform

• KT-51810 MPP / Gradle: Dependency locking fails with 1.6.20
• KT-51765 com.android.lint in multiplatform project without android target should not trigger warning

Commits

• ed3967e Add changelog for 1.6.21
• 26487d2 JS IR: materialize Unit in lambdas
• 4cbf375 Add workaround for Gradle dependency resolution error
• a16798d Force using 2.8.9+ gson version as a dependency
• 3ac8d95 Fix exception when reporting WRONG_TYPE_PARAMETER_NULLABILITY_FOR_JAVA_OVERRIDE
• 2f4afe0 Fix for KT-51765
• 5584a50 [FE 1.0] Don't report OVERRIDE_DEPRECATION on default accessors of deprecated...
• a3ed332 rrr/1.6.20/ilgonmic/kt-51973
• 368465e JVM IR: Resolve fake overrides during inline class mangling
• 0c80614 [FE 1.0] Fix false-negative INVALID_IF_AS_EXPRESSION_WARNING and NO_ELSE_IN_W...
• Additional commits viewable in compare view

Updates kotlin-maven-plugin from 1.6.20 to 1.6.21

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