* decl2.c (build_expr_from_tree): Change calls of do_identifier.
	Do Koenig lookup in CALL_EXPR.
	(arg_assoc): Handle error_mark.
	* lex.c (is_global): New function.
	(do_identifier): Expect arguments for Koenig lookup.
	* parse.y (primary): Add rules for calls of unqualified function calls.
	(do_id): Change call of do_identifier.
	* pt.c (finish_stmt_expr): Likewise.
	* semantics.c (finish_id_expr): Likewise.
	(finish_call_expr): Add integer parameter to indicate
	argument-dependent lookup.

From-SVN: r21091