fixup to free_and_set_cop_warnings()

v5.31.9-156-g94c8b9c1f0 introduced the free_and_set_cop_warnings()
macro. It's first argument expects a COP rather than a COP*. Its usage
in S_restore_cop_warnings(() is to modify PL_cucop, but in order to pass
a COP rather than a COP*, the original commit made a local copy of
PL_curcop and ended up inadvertently updating the copy instead.

This commit changes the maco so it expects a COP*, and updates the bulk
of its callers to use &PL_compiling rather than PL_compiling, and fixes
up S_restore_cop_warnings().

The symptoms were ASAN failures in a few test scripts including
uni/parser.t and ext/XS-APItest/t/handy0*.t.

(The S_restore_cop_warnings() function was only used by
Perl__force_out_malformed_utf8_message(), so didn't cause many issues
outside of test scripts which forced such "malformed "errors).

1 files changed, 1 insertions, 1 deletions

diff --git a/scope.c b/scope.c
index ad8f8e764b..a948a7b4f2 100644
--- a/scope.c
+++ b/scope.c
@@ -1448,7 +1448,7 @@ Perl_leave_scope(pTHX_ I32 base)
 
 	case SAVEt_COMPILE_WARNINGS:
             a0 = ap[0];
-        free_and_set_cop_warnings(PL_compiling, (STRLEN*) a0.any_ptr);
+        free_and_set_cop_warnings(&PL_compiling, (STRLEN*) a0.any_ptr);
 	    break;
 
 	case SAVEt_PARSER: