needed to implement @PreDestroy

it must be already compiled by Idea

The problem was in the "more specific" relation, that didn't pay enough attention to varargs.
The correct behavior is in the spirit of JLS 15.12.2 (as of Java 5):
 * a fixed-arity function always wins over a variable-arity functions
 * if two vararg functions are compared, their parameters are checked for subtyping.
  In the latter case, the candidates may have different number of formal parameters, so we
  compare the matching parts and then check the rest against the vararg parameter.

 #KT-1835 Fixed

The problem was in the "more specific" relation, that didn't pay enough attention to varargs.
The correct behavior is in the spirit of JLS 15.12.2 (as of Java 5):
 * a fixed-arity function always wins over a variable-arity functions
 * if two vararg functions are compared, their parameters are checked for subtyping.
  In the latter case, the candidates may have different number of formal parameters, so we
  compare the matching parts and then check the rest against the vararg parameter.

 #KT-1835 Fixed

When a non-vararg parameter gets spread with a '*' in front of it, a "weak error" is returned.
A candidate with a weak error in parameter matching is type-checked, but not successful.

- interfaces MemberPrioritizer, ResolutionCandidate introduced
- CallTransformationStrategy will be responsible for variable with 'invoke' method as function resolve

New repository is located at https://github.com/jetbrains/kotlin-confluence-plugin

What used to be CompileEnvironment, now is split into data (in CompileEnvironmentConfiguration) and utility methods (in CompileEnvironmentUtil).
CompilerDependencies should be removed later.
All the relevant stuff sits in the JetCoreEnvironment class

Changes in confluence plugin

move classBuilderMode to injector and GenerationState from ClassBuilder

 #KT-1786 fixed

#KT-1831 Fixed

 #KT-1630 fixed

 #KT-1822 fixed

 #KT-1680 fixed

(basic)

actually fixed in Idea in 4afdd61d8dcb846994166ed8f30a7515e9661d56. Thanks, Max!