@Override public void visitMethodReturnType(PsiMethod method, TypeOccurence occurence) {
    GlobalSearchScope projectScope = GlobalSearchScope.projectScope(myClass.getProject());

    for (PsiReference ref : ReferencesSearch.search(method, projectScope, false)) {
      PsiElement element = ref.getElement();
      if (element instanceof PsiReferenceExpression) {
        PsiElement parent = element.getParent();
        if (parent instanceof PsiMethodCallExpression) {
          processExpression((PsiMethodCallExpression)parent, occurence, method);
        }
      }
    }
  }
@Override public void visitMethodReturnType(PsiMethod method, TypeOccurence occurence)