accessibility: don't check supers during method/field type check

java/java-tests/testData/codeInsight/multipleJdks/java7/p/DeclaredTypeOfVariableImplementsUnknownType.java

@@ -8,6 +8,8 @@ abstract class B {
     a.bar();
     
     <error descr="Cannot access java.util.stream.Stream">a.myField</error>;
+
+    a.a();
   }
 
   void f(java.util.List<? extends A> a) {

java/java-tests/testData/codeInsight/multipleJdks/java8/p/DeclaredTypeOfVariableImplementsUnknownType.java

@@ -8,4 +8,6 @@ public abstract class A implements List<Stream<String>> {
   public void bar() {}
   
   public Stream<String> myField;
+  
+  public A a() {}
 }