KT-1560

Report warning on extensions shadowed by members.

compiler/testData/diagnostics/tests/regressions/Jet69.kt

@@ -2,7 +2,7 @@ class Command() {}
 
 fun parse(<!UNUSED_PARAMETER!>cmd<!>: String): Command? { return null  }
 
-fun Any.equals(other : Any?) : Boolean = this === other
+fun Any.<!EXTENSION_SHADOWED_BY_MEMBER!>equals<!>(other : Any?) : Boolean = this === other
 
 fun main(args: Array<String>) {
     val command = parse("")

compiler/testData/diagnostics/tests/regressions/SpecififcityByReceiver.kt

@@ -1,4 +1,4 @@
-fun Any.equals(<!UNUSED_PARAMETER!>other<!> : Any?) : Boolean = true
+fun Any.<!EXTENSION_SHADOWED_BY_MEMBER!>equals<!>(<!UNUSED_PARAMETER!>other<!> : Any?) : Boolean = true
 
 fun main(args: Array<String>) {