test for obsolete kt302

compiler/testData/checkerWithErrorTypes/quick/regressions/kt302.jet

@@ -0,0 +1,13 @@
+// KT-302 Report an error when inheriting many implementations of the same member
+
+namespace kt302
+
+trait A {
+    open fun foo() {}
+}
+
+trait B {
+    open fun foo() {}
+}
+
+class <!MANY_IMPL_MEMBER_NOT_IMPLEMENTED!>C<!> : A, B {} //should be error here