aarch64: Don't update EH info when folding [PR107209]

aarch64: Don't update EH info when folding [PR107209]

The AArch64 folders tried to update EH info on the fly, bypassing
the folder's attempts to remove dead EH edges later.  This triggered
an ICE when folding a potentially-trapping call to a constant.

gcc/
	PR target/107209
	* config/aarch64/aarch64.cc (aarch64_gimple_fold_builtin): Don't
	update EH info on the fly.

gcc/testsuite/
	* gcc.target/aarch64/pr107209.c: New test.

Co-Authored-By: Richard Biener <rguenther@suse.de>