2.4.0

Thanks to @eyupcanakman and @arimu1 for contributing to this release.

• New: Kotlin 2.4.20.
• New: KSP 2.3.11.
• New: Support for explicit backing fields. (#2325)
• New: value class validations have been relaxed to support multi-field value classes. (#2329)
• New: Extract CodeBlockHolder interface for constructs that can hold a CodeBlock body and their builders. (#2331)
• New: Add CodeBlock.Builder.addComment() for adding // comments. (#2340)
• New: Add CodeBlockHolder.Builder.addComment(). (#2347)
• New: Use [] syntax instead of arrayOf when emitting annotation arguments. (#2361)
• Fix: Keep the // prefix on wrapped file comment lines. (#2315)
• Fix: TypeVariableName.equals/hashCode no longer overflow on recursively bound generics like Enum<E : Enum<E>>. (#2320)
• Fix: get and set operator function names are no longer escaped with backticks. (#2338)
• Fix: Don't special case varargs in KSAnnotation.toAnnotationSpec. (#2360)
• Fix: KSType.toTypeName() with the default TypeParameterResolver.EMPTY now resolves type parameters from their enclosing declarations instead of throwing. (#2368)
• Fix: Emit context parameters after annotations in FunSpec and PropertySpec. (#2374)
• Fix: An expression body no longer leaks indentation into later declarations. (#2365)