semantics.c (end_maybe_infinite_loop): Use fold_non_dependent_expr.

2014-11-14  Paolo Carlini  <paolo.carlini@oracle.com>

	* semantics.c (end_maybe_infinite_loop): Use fold_non_dependent_expr.
	* parser.c (cp_parser_omp_clause_collapse): Likewise.
	(cp_parser_enumerator_definition): Don't call
	instantiate_non_dependent_expr...
	* decl.c (build_enumerator): ... call fold_non_dependent_expr here.
	* typeck2.c (massage_init_elt): Use fold_non_dependent_expr.
	* constexpr.c (maybe_constant_value): Allow VIEW_CONVERT_EXPR in
	the final gcc_assert.

	* constexpr.c (fold_non_dependent_expr): Add.
	* cp-tree.h (fold_non_dependent_expr): Declare it.
	* call.c (null_ptr_cst_p): Use it.
	* pt.c (tsubst_copy_and_build, build_non_dependent_expr): Likewise.
	* semantics.c (begin_maybe_infinite_loop): Likewise.
	* typeck.c (cp_build_binary_op): Likewise.
	* typeck2.c (check_narrowing): Likewise.

	* pt.c (fold_non_dependent_expr): Rename to
	instantiate_non_dependent_expr.
	(fold_non_dependent_expr_sfinae): Rename to
	instantiate_non_dependent_expr_sfinae.
	(convert_nontype_argument, build_non_dependent_expr): Adjust.
	* decl.c (compute_array_index_type): Likewise.
	* parser.c (cp_parser_parenthesized_expression_list,
	cp_parser_enumerator_definition, cp_parser_omp_clause_collapse):
	Likewise.
	* semantics.c (end_maybe_infinite_loop, finish_static_assert):
	Likewise.
	* typeck.c (cxx_alignas_expr): Likewise.
	* typeck2.c (store_init_value, massage_init_elt): Likewise.
	* call.c: Adjust comments.
	* class.c: Likewise.
	* constexpr.c: Likewise.
	* decl2.c: Likewise.
	* tree.c: Likewise.

From-SVN: r217577