Revert "avoid identical stack traces"

This reverts commit f2f32cd638746f538da6db804dab6dd54e654f30.

1 files changed, 1 insertions, 23 deletions

diff --git a/op.c b/op.c
index cd2dc44229..322d6d6641 100644
--- a/op.c
+++ b/op.c
@@ -11722,32 +11722,10 @@ S_process_special_blocks(pTHX_ I32 floor, const char *const fullname,
             (void)CvGV(cv);
 	    if (floor) LEAVE_SCOPE(floor);
 	    ENTER;
-
-            SAVEVPTR(PL_curcop);
-            if (PL_curcop == &PL_compiling) {
-                /* Avoid pushing the "global" &PL_compiling onto the
-                 * context stack. For example, a stack trace inside
-                 * nested use's would show all calls coming from whoever
-                 * most recently updated PL_compiling.cop_file and
-                 * cop_line.  So instead, temporarily set PL_curcop to a
-                 * private copy of &PL_compiling. PL_curcop will soon be
-                 * set to point back to &PL_compiling anyway but only
-                 * after the temp value has been pushed onto the context
-                 * stack as blk_oldcop.
-                 * This is slightly hacky, but necessary. Note also
-                 * that in the brief window before PL_curcop is set back
-                 * to PL_compiling, IN_PERL_COMPILETIME/IN_PERL_RUNTIME
-                 * will give the wrong answer.
-                 */
-                Newx(PL_curcop, 1, COP);
-                StructCopy(&PL_compiling, PL_curcop, COP);
-                PL_curcop->op_slabbed = 0;
-                SAVEFREEPV(PL_curcop);
-            }
-
             PUSHSTACKi(PERLSI_REQUIRE);
 	    SAVECOPFILE(&PL_compiling);
 	    SAVECOPLINE(&PL_compiling);
+	    SAVEVPTR(PL_curcop);
 
 	    DEBUG_x( dump_sub(gv) );
 	    Perl_av_create_and_push(aTHX_ &PL_beginav, MUTABLE_SV(cv));