KT-1560

Report warning on extensions shadowed by members.

idea/testData/checker/ExtensionFunctions.kt

@@ -46,7 +46,7 @@ fun Int.foo() = this
           val foo : Int = 0
         }
 
-        <error>operator</error> fun Any.equals(<warning>other</warning> : Any?) : Boolean = true
+        <error>operator</error> fun Any.<warning>equals</warning>(<warning>other</warning> : Any?) : Boolean = true
         fun Any?.equals1(<warning>other</warning> : Any?) : Boolean = true
         fun Any.equals2(<warning>other</warning> : Any?) : Boolean = true
 

idea/testData/checker/regression/Jet69.kt

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

idea/testData/checker/regression/SpecififcityByReceiver.kt

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