* opt.ads (Suppress_Back_Annotation): Remove as unused.
	* fe.h (Back_Annotate_Rep_Info): Likewise.
	(Global_Discard_Names): Likewise.
	(List_Representation_Info): Declare.
	* types.h (Uint_Minus_1): Likewise.
	* repinfo.ads: Document back-annotation change.
	* gcc-interface/gigi.h (init_gnat_decl): Declare.
	(destroy_gnat_decl): Likewise.
	* gcc-interface/decl.c (annotate_value): Do not create the cache of
	annotated values here but...
	<CALL_EXPR>: Only inline the call if -gnatR3 is specified or we are
	in ASIS mode.
	(init_gnat_decl): ...here instead.  New function.
	(destroy_gnat_decl): Likewise.
	* gcc-interface/trans.c (gigi): Call {init|destroy}_gnat_decl.
	* gcc-interface/utils.c (init_gnat_utils): Minor reformatting.

Co-Authored-By: Robert Dewar <dewar@adacore.com>

From-SVN: r209371