* fe.h (Suppress_Checks): Declare.
	* gcc-interface/misc.c (gnat_init_gcc_eh): Set -fnon-call-exceptions
	only if checks are not suppressed and -faggressive-loop-optimizations
	only if they are.
	* gcc-interface/trans.c (struct loop_info_d): Remove has_checks and
	warned_aggressive_loop_optimizations fields.
	(gigi): Do not clear warn_aggressive_loop_optimizations here.
	(Raise_Error_to_gnu): Do not set has_checks.
	(gnat_to_gnu) <N_Indexed_Component>: Remove support for aggressive
	loop optimizations.

From-SVN: r265921