forwprop: Refine when TODO_update_address_taken is set [PR122143]

forwprop: Refine when TODO_update_address_taken is set [PR122143]

As requested in https://inbox.sourceware.org/gcc-patches/CAFiYyc162F+i=majzQqutFcq1y=DtRoJVC4z+V3gP8N7uTnFLA@mail.gmail.com/T/#u.
This refines when TODO_update_address_taken is set so it only set when folding of a call.
This should speed up compile time slightly if we don't fold a call during the last forwprop.

Boostrapped and tested on x86_64-linux-gnu.

	PR tree-optimization/122143
gcc/ChangeLog:

	* tree-ssa-forwprop.cc (pass_forwprop::execute): Restrict setting
	TODO_update_address_taken only when the statement was a call before fold_stmt.

Signed-off-by: Andrew Pinski <andrew.pinski@oss.qualcomm.com>