call.c (struct conversion_info): Rename 'from_type' to 'from'.

call.c (struct conversion_info): Rename 'from_type' to 'from'.

	* call.c (struct conversion_info): Rename 'from_type' to 'from'.
	(arg_conversion_rejection, bad_arg_conversion_rejection)
	(explicit_conversion_rejection, template_conversion_rejection): Adjust.
	(add_function_candidate): Pass actual argument, rather than type, to
	bad_arg_conversion_rejection.
	(print_conversion_rejection): Explain what's wrong with the conversion.
	(print_z_candidate): Say "candidate:" before each candidate.
	(splice_viable): Be strict if we see a viable or template candidate.
	(build_user_type_conversion_1): Pass false to strict parameter.
	(perform_overload_resolution, build_conditional_expr_1): Likewise.
	(build_new_op_1, build_new_method_call_1): Likewise.
	(build_op_call_1): Pass true to strict parameter.

From-SVN: r210435