GH-96793: Change `FOR_ITER` to not pop the iterator on exhaustion. (GH-96801)

Change FOR_ITER to have the same stack effect regardless of whether it branches or not.
Performance is unchanged as FOR_ITER (and specialized forms jump over the cleanup code).

1 files changed, 28 insertions, 28 deletions

diff --git a/Programs/test_frozenmain.h b/Programs/test_frozenmain.h
index 677ce18..96be3ce 100644
--- a/Programs/test_frozenmain.h
+++ b/Programs/test_frozenmain.h
@@ -1,7 +1,7 @@
 // Auto-generated by Programs/freeze_test_frozenmain.py
 unsigned char M_test_frozenmain[] = {
     227,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,
-    0,0,0,0,0,243,182,0,0,0,151,0,100,0,100,1,
+    0,0,0,0,0,243,184,0,0,0,151,0,100,0,100,1,
     108,0,90,0,100,0,100,1,108,1,90,1,2,0,101,2,
     100,2,171,1,0,0,0,0,0,0,0,0,1,0,2,0,
     101,2,100,3,101,0,106,6,0,0,0,0,0,0,0,0,
@@ -12,31 +12,31 @@ unsigned char M_test_frozenmain[] = {
     0,0,0,0,90,5,100,5,68,0,93,23,0,0,90,6,
     2,0,101,2,100,6,101,6,155,0,100,7,101,5,101,6,
     25,0,0,0,0,0,0,0,0,0,155,0,157,4,171,1,
-    0,0,0,0,0,0,0,0,1,0,140,25,100,1,83,0,
-    41,8,233,0,0,0,0,78,122,18,70,114,111,122,101,110,
-    32,72,101,108,108,111,32,87,111,114,108,100,122,8,115,121,
-    115,46,97,114,103,118,218,6,99,111,110,102,105,103,41,5,
-    218,12,112,114,111,103,114,97,109,95,110,97,109,101,218,10,
-    101,120,101,99,117,116,97,98,108,101,218,15,117,115,101,95,
-    101,110,118,105,114,111,110,109,101,110,116,218,17,99,111,110,
-    102,105,103,117,114,101,95,99,95,115,116,100,105,111,218,14,
-    98,117,102,102,101,114,101,100,95,115,116,100,105,111,122,7,
-    99,111,110,102,105,103,32,122,2,58,32,41,7,218,3,115,
-    121,115,218,17,95,116,101,115,116,105,110,116,101,114,110,97,
-    108,99,97,112,105,218,5,112,114,105,110,116,218,4,97,114,
-    103,118,218,11,103,101,116,95,99,111,110,102,105,103,115,114,
-    3,0,0,0,218,3,107,101,121,169,0,243,0,0,0,0,
-    250,18,116,101,115,116,95,102,114,111,122,101,110,109,97,105,
-    110,46,112,121,250,8,60,109,111,100,117,108,101,62,114,18,
-    0,0,0,1,0,0,0,115,149,0,0,0,240,3,1,1,
-    1,240,8,0,1,11,128,10,128,10,128,10,216,0,24,208,
-    0,24,208,0,24,208,0,24,224,0,5,128,5,208,6,26,
-    212,0,27,208,0,27,216,0,5,128,5,128,106,144,35,151,
-    40,145,40,212,0,27,208,0,27,216,9,38,208,9,26,215,
-    9,38,209,9,38,212,9,40,168,24,212,9,50,128,6,240,
-    2,6,12,2,240,0,7,1,42,241,0,7,1,42,128,67,
-    240,14,0,5,10,128,69,208,10,40,144,67,208,10,40,208,
-    10,40,152,54,160,35,156,59,208,10,40,208,10,40,212,4,
-    41,208,4,41,208,4,41,240,15,7,1,42,240,0,7,1,
-    42,114,16,0,0,0,
+    0,0,0,0,0,0,0,0,1,0,140,25,4,0,100,1,
+    83,0,41,8,233,0,0,0,0,78,122,18,70,114,111,122,
+    101,110,32,72,101,108,108,111,32,87,111,114,108,100,122,8,
+    115,121,115,46,97,114,103,118,218,6,99,111,110,102,105,103,
+    41,5,218,12,112,114,111,103,114,97,109,95,110,97,109,101,
+    218,10,101,120,101,99,117,116,97,98,108,101,218,15,117,115,
+    101,95,101,110,118,105,114,111,110,109,101,110,116,218,17,99,
+    111,110,102,105,103,117,114,101,95,99,95,115,116,100,105,111,
+    218,14,98,117,102,102,101,114,101,100,95,115,116,100,105,111,
+    122,7,99,111,110,102,105,103,32,122,2,58,32,41,7,218,
+    3,115,121,115,218,17,95,116,101,115,116,105,110,116,101,114,
+    110,97,108,99,97,112,105,218,5,112,114,105,110,116,218,4,
+    97,114,103,118,218,11,103,101,116,95,99,111,110,102,105,103,
+    115,114,3,0,0,0,218,3,107,101,121,169,0,243,0,0,
+    0,0,250,18,116,101,115,116,95,102,114,111,122,101,110,109,
+    97,105,110,46,112,121,250,8,60,109,111,100,117,108,101,62,
+    114,18,0,0,0,1,0,0,0,115,154,0,0,0,240,3,
+    1,1,1,240,8,0,1,11,128,10,128,10,128,10,216,0,
+    24,208,0,24,208,0,24,208,0,24,224,0,5,128,5,208,
+    6,26,212,0,27,208,0,27,216,0,5,128,5,128,106,144,
+    35,151,40,145,40,212,0,27,208,0,27,216,9,38,208,9,
+    26,215,9,38,209,9,38,212,9,40,168,24,212,9,50,128,
+    6,240,2,6,12,2,240,0,7,1,42,241,0,7,1,42,
+    128,67,240,14,0,5,10,128,69,208,10,40,144,67,208,10,
+    40,208,10,40,152,54,160,35,156,59,208,10,40,208,10,40,
+    212,4,41,208,4,41,208,4,41,240,15,7,1,42,240,0,
+    7,1,42,240,0,7,1,42,114,16,0,0,0,
 };