Kotlin/1.5.31/idea/2020.2

[JulianHahn96]

A few further improvements to the eclipse kotlin plugin. See commits for details.

Main changes:

• delete changed kotlin .class files before recompilation. Otherwise deleted classes would still exist in compiled output until a clean build is performed
• Handling of Provided Properties in Scripts and the classpath of scripts
• error output of the compiler
• find usage:
  • find references to operator methods for delegates (getValue, setValue, provideDelegate)
  • find references that were imported with an alias.
• open declaration:
  • navigate to delegate methods (getValue, setValue, provideDelegate) from the by keyword context information:
  • dont show the same hint multiple times and reduce time needed to calculate the information. completion:
  • find possible top level functions and properties