re PR c++/60463 (Lambda function can call a non-const member function with const...

re PR c++/60463 (Lambda function can call a non-const member function with const this)

	PR c++/60463
	PR c++/60755
	* lambda.c (lambda_expr_this_capture): Add new parameter
	add_capture_p controlling whether the functions will try to
	capture 'this' via the default capture.
	(maybe_resolve_dummy): Likewise.
	* cp-tree.h: Adjust prototypes.
	* call.c, semantics.c: Change callers of these functions.
	* call.c (build_new_method_call_1): Use the actual 'this' that
	would be potentially captured for the overload resolution, instead
	of the dummy object.

From-SVN: r210292