KT-1560

Report warning on extensions shadowed by members.

compiler/testData/diagnostics/tests/operatorRem/modWithRemAssign.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_PARAMETER, -EXTENSION_SHADOWED_BY_MEMBER
 
 class ModAndRemAssign {
     <!DEPRECATED_BINARY_MOD!>operator<!> fun mod(x: Int) = ModAndRemAssign()

compiler/testData/diagnostics/tests/operatorRem/noOperatorRemFeature.kt

@@ -1,5 +1,5 @@
 // !LANGUAGE: -OperatorRem
-// !DIAGNOSTICS: -UNUSED_PARAMETER, -UNUSED_VARIABLE
+// !DIAGNOSTICS: -UNUSED_PARAMETER, -UNUSED_VARIABLE, -EXTENSION_SHADOWED_BY_MEMBER
 
 class Foo {
     <!UNSUPPORTED_FEATURE!>operator<!> fun rem(x: Int): Foo = Foo()

compiler/testData/diagnostics/tests/operatorRem/numberRemConversions.kt

@@ -12,4 +12,4 @@ fun test() {
     fooShort(1 % 1)
 }
 
-public operator fun Int.rem(other: Int): Int = 0
+public operator fun Int.<!EXTENSION_SHADOWED_BY_MEMBER!>rem<!>(other: Int): Int = 0

compiler/testData/diagnostics/tests/operatorRem/remWithModAndModAssign.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_PARAMETER, -EXTENSION_SHADOWED_BY_MEMBER
 
 class ModAndRemAssign {
     <!DEPRECATED_BINARY_MOD!>operator<!> fun mod(x: Int) = ModAndRemAssign()