ipa: Unshare expresseions before putting them into debug statements (PR 103099, PR...

ipa: Unshare expresseions before putting them into debug statements (PR 103099, PR 103107)

My recent patch to improve debug experience when there are removed
parameters (by ipa-sra or ipa-split) was not careful to unshare the
expressions that were then put into debug statements, which manifests
itself as PR 103099.  This patch adds unsharing them using
unshare_expr_without_location which is a bit more careful with stripping
locations than what we were doing manually and so also fixes PR 103107.

gcc/ChangeLog:

2021-11-08  Martin Jambor  <mjambor@suse.cz>

	PR ipa/103099
	PR ipa/103107
	* tree-inline.c (remap_gimple_stmt): Unshare the expression without
	location before invoking remap_with_debug_expressions on it.
	* ipa-param-manipulation.c
	(ipa_param_body_adjustments::prepare_debug_expressions): Likewise.

gcc/testsuite/ChangeLog:

2021-11-08  Martin Jambor  <mjambor@suse.cz>

	PR ipa/103099
	PR ipa/103107
	* g++.dg/ipa/pr103099.C: New test.
	* gcc.dg/ipa/pr103107.c: Likewise.