Check of type parameter bounds consistency #KT-9438 Fixed

idea/testData/checker/TypeParameterBounds.kt

@@ -0,0 +1,11 @@
+// See KT-9438: Enforce the Single Instantiation Inheritance Rule for type parameters
+
+interface A
+
+interface B
+
+interface D<T>
+
+interface CorrectF<<error descr="[INCONSISTENT_TYPE_PARAMETER_BOUNDS] Type parameter T of 'D' has inconsistent bounds: A, B">T</error>> where T : D<A>, T : D<B>
+
+fun <<error descr="[INCONSISTENT_TYPE_PARAMETER_BOUNDS] Type parameter T of 'D' has inconsistent bounds: A, B">T</error>> bar() where T : D<A>, T : D<B> {}