Created attachment 158038 [details]
A class that the parser can not handle.

I get a parse error on this class.

line 13:42 at [@64,540:540=')',<62>,13:42]: mismatched input ')' expecting {<EOF>, NoSubstitutionTemplate, TemplateHead, 'break', 'do', 'in', 'typeof', 'instanceof', 'var', 'export', 'new', 'void', 'class', 'return', 'while', 'const', 'super', 'with', 'continue', 'for', 'switch', 'yield', 'debugger', 'function', 'this', 'if', 'throw', 'delete', 'import', 'try', 'let', '(', '{', '[', '.', ';', ',', '<', '>', '<=', '>=', '==', '!=', '===', '!==', '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&', '|', '^', '!', '~', '&&', '||', 'null', 'true', 'false', NUMERIC_DECIMAL, NUMERIC_INTEGER, NUMERIC_BINARY, NUMERIC_OCTAL, NUMERIC_HEX, STRING, REGULAR_EXPRESSION, IDENTIFIER}