gigi.h (create_subprog_decl): Add ARTIFICIAL_FLAG parameter.

gigi.h (create_subprog_decl): Add ARTIFICIAL_FLAG parameter.

	* gcc-interface/gigi.h (create_subprog_decl): Add ARTIFICIAL_FLAG
	parameter.
	* gcc-interface/utils.c (create_subprog_decl): Likewise.  Set
	DECL_ARTIFICIAL and DECL_NO_INLINE_WARNING_P on the DECL accordingly.
	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Subprogram_Type>: Add
	ARTIFICIAL_FLAG local variable and pass it to create_subprog_decl.
	<all>: Do not set flags on the reused DECL node coming from an alias.
	Set DECL_IGNORED_P on the DECL node built for subprograms if they
	don't need debug info here...
	* gcc-interface/trans.c (Subprogram_Body_to_gnu): ...and not here.
	(gigi): Adjust calls to create_subprog_decl.
	(build_raise_check): Likewise.
	(establish_gnat_vms_condition_handler): Likewise.
	(Compilation_Unit_to_gnu): Likewise.
	(gnat_to_gnu): Likewise.

From-SVN: r172862