OverloadResolver:

fix redeclaration diagnostics issue in incremental compilation (KT-6165)
J2K: OverloadUtil.kt

jps-plugin/testData/incremental/pureKotlin/funRedeclaration/build.log

@@ -5,10 +5,5 @@ End of files
 Compiling files:
 src/fun2.kt
 End of files
-Cleaning output files:
-out/production/module/META-INF/module.kotlin_module
-out/production/module/test/Fun1Kt.class
-End of files
-Compiling files:
-src/fun1.kt
-End of files
+COMPILATION FAILED
+'public fun function(): kotlin.Unit' is already defined in test

jps-plugin/testData/incremental/pureKotlin/propertyRedeclaration/build.log

@@ -6,6 +6,4 @@ Compiling files:
 src/prop2.kt
 End of files
 COMPILATION FAILED
-Platform declaration clash: The following declarations have the same JVM signature (getProperty()I):
-    fun <get-property>(): kotlin.Int
-    fun <get-property>(): kotlin.Int
+Redeclaration: property