apply capture conversion for captured wildcard bound according to the direct supertype of parameterized type specification (IDEA-157586)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/StopBoundsPromotionInsideNestedWildcards.java

@@ -4,5 +4,6 @@ interface B<T extends A<?>> { }
 class C {
   void foo(A<?> x){
     <error descr="Incompatible types. Found: 'A<capture<?>>', required: 'A<? extends B<? extends A<?>>>'">A<? extends B<? extends A<?>>>  y =  x;</error>
+    Object y1 = (A<? extends B<? extends A<?>>>) x;
   }
 }