Add tree-inlined gconds to caller cond->expr map

Add tree-inlined gconds to caller cond->expr map

Properly add the condition -> expression mapping of inlined gconds from
the caller into the callee map. This is a fix for PR114599 that works
beyond fixing the segfault, as the previous fixed copied references to
the source gconds, not the deep copied ones that end up in the calle
body.

The new tests checks this, both in the case of a calle without
conditions (which triggered the segfault), and a test that shows that
conditions are properly mapped, and not mixed.

	PR middle-end/114599

gcc/ChangeLog:

	* tree-inline.cc (copy_bb): Copy cond_uids into callee.
	(prepend_lexical_block): Remove outdated comment.
	(add_local_variables): Remove bad cond_uids copy.

gcc/testsuite/ChangeLog:

	* gcc.misc-tests/gcov-19.c: New test.