GH-106529: Define POP_JUMP_IF_NONE in terms of POP_JUMP_IF_TRUE (GH-106599)

Author: markshannon

Python/bytecodes.c

@@ -2282,22 +2282,20 @@ dummy_func(
             JUMPBY(oparg * Py_IsTrue(cond));
         }
 
-        inst(POP_JUMP_IF_NOT_NONE, (value -- )) {
-            if (!Py_IsNone(value)) {
-                DECREF_INPUTS();
-                JUMPBY(oparg);
-            }
-        }
-
-        inst(POP_JUMP_IF_NONE, (value -- )) {
+        op(IS_NONE, (value -- b)) {
             if (Py_IsNone(value)) {
-                JUMPBY(oparg);
+                b = Py_True;
             }
             else {
+                b = Py_False;
                 DECREF_INPUTS();
             }
         }
 
+        macro(POP_JUMP_IF_NONE) = IS_NONE + POP_JUMP_IF_TRUE;
+
+        macro(POP_JUMP_IF_NOT_NONE) = IS_NONE + POP_JUMP_IF_FALSE;
+
         inst(JUMP_BACKWARD_NO_INTERRUPT, (--)) {
             /* This bytecode is used in the `yield from` or `await` loop.
              * If there is an interrupt, we want it handled in the innermost