Kotlin M9

What's new:

• Language
  • Platform Types
  • [breaking change] Local objects prohibited
  • Non-local returns from inline functions
  • type is no longer a keyword
• JVM
  • [platformStatic] annotations
  • Byte code size improvements
  • Useless boxing/unboxing elimination
• JavaScript
  • Language features supported: delegation, callable references, Long and Char, inline functions, multiple catch-blocks
  • [breaking change] Native traits exist only at compile time
  • [breaking change] New name mangling strategy
  • [breaking change] Packages renamed: js.* and js.debug.* -> kotlin.js.*, kotlin.query.* -> jquery.*
  • [breaking change] Changes in println() behavior
• Incremental compilation in IntelliJ IDEA (experimental)
• IDE plugin changes
  • Code Duplication detection in Extract Function
  • Create From Usage
  • Completion takes IDE modules into account
  • Find Usage and Rename respect conventions for operator overloading
  • Delegated properties in debugger
  • Completion improvements
• CLI
  • [breaking change] Command Line options reworked