private boolean checkType(PsiReferenceExpression expression, PsiType type) {
        PsiClass psiClass = PsiUtil.resolveClassInClassTypeOnly(type);
        if (psiClass != null) {
          String qualifiedName = psiClass.getQualifiedName();
          if (qualifiedName != null && myClasses.containsKey(qualifiedName)) {
            PsiElement name = expression.getReferenceNameElement();
            registerError(name == null ? expression : name, qualifiedName, expression);
            return true;
          }
        }
        return false;
      }
private boolean checkType(PsiReferenceExpression expression, PsiType type)