anchor.diff:    @override
     TypedLiteral parseListOrMapLiteral(analyzer.Token modifier, String code) {
       String literalCode = modifier != null ? '$modifier $code' : code;
  -    return _parseExpression(literalCode);
  +    return parsePrimaryExpression(literalCode) as TypedLiteral;
     }
   
     @override
  
positive.code: 
    @override
    @failingTest
    void test_parseListOrMapLiteral_map_noType() {
      super.test_parseListOrMapLiteral_map_noType();
    }
  
    @override
    @failingTest
    void
        test_parsePostfixExpression_none_methodInvocation_question_dot_typeArgumentComments() {
      super
  
negative.code:         .test_parseCompilationUnitMember_function_generic_noReturnType_annotated();
    }
  
    @override
    @failingTest
    void test_parseDirectives_mixed() {
  