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* parser.c (cp_parser_fold_expr_p): Remove.
(is_binary_op): New.
(cp_parser_fold_expression): Take LHS as parameter.
(cp_parser_primary_expression): Call it after parsing an expression.
(cp_parser_binary_expression, cp_parser_assignment_operator_opt)
(cp_parser_expression): Ignore an operator followed by '...'.
(is_binary_op): New.
* pt.c (tsubst_unary_left_fold, tsubst_binary_left_fold)
(tsubst_unary_right_fold, tsubst_binary_right_fold): Handle errors.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228556 138bc75d-0d04-0410-961f-82ee72b054a4
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