Fix annoying parameter name override warning

Some corner cases still remain: KotlinSignature, propagation, deserialized
delegates to Java interfaces

 #KT-1239 Obsolete
 #KT-1924 In Progress
 #KT-2081 Fixed

compiler/testData/diagnostics/tests/override/parameterNames/kotlinInheritsBothJavaAndKotlin.kt

@@ -0,0 +1,13 @@
+// FILE: JavaInterface.java
+
+interface JavaInterface {
+    void foo(int javaName);
+}
+
+// FILE: kotlin.kt
+
+trait KotlinTrait {
+    fun foo(someOtherName: Int) {}
+}
+
+class BothTraitsSubclass : JavaInterface, KotlinTrait