cp-tree.h (build_this_parm, [...]): Add FN parm.

	gcc/cp/
	* cp-tree.h (build_this_parm, cp_build_parm_decl)
	build_artificial_parm): Add FN parm.
	* decl.c (start_cleanup_fn): Adjust.
	(build_this_parm): Add FN parm, pass it through.
	(grokfndecl): Adjust parm building.
	* decl2.c (cp_build_parm_decl): Add FN parm, set context.
	(build_artificial_parm): Add FN parm, pass through.
	(maybe_retrofit_in_chrg): Adjust parm building.
	(start_static_storage_duration_function): Likwise.
	* lambda.c (maybe_aadd_lambda_conv_op): Likewise.
	* method.c (implicitly_declare_fn): Likewise.
	* parser.c (inject_this_parameter): Likewise.

	libcc1/
	* libcp1plugin.cc (plugin_build_decl): Adjust parm building.
(--This line, and those below, will be ignored--

M    gcc/cp/parser.c
M    gcc/cp/ChangeLog
M    gcc/cp/decl.c
M    gcc/cp/lambda.c
M    gcc/cp/cp-tree.h
M    gcc/cp/method.c
M    gcc/cp/decl2.c
M    libcc1/libcp1plugin.cc
M    libcc1/ChangeLog

From-SVN: r249268