DoExpressionErrorTest  127 tools/gn/parser_unittest.cc   DoExpressionErrorTest("foo(1, 2,)", 1, 10);
DoExpressionErrorTest  145 tools/gn/parser_unittest.cc   DoExpressionErrorTest("(a +", 1, 4);
DoExpressionErrorTest  206 tools/gn/parser_unittest.cc   DoExpressionErrorTest("[a, 2+,]", 1, 6);
DoExpressionErrorTest  207 tools/gn/parser_unittest.cc   DoExpressionErrorTest("[,]", 1, 2);
DoExpressionErrorTest  208 tools/gn/parser_unittest.cc   DoExpressionErrorTest("[a,,]", 1, 4);