GH-104584: Fix ENTER_EXECUTOR (GH-106141)

* Check eval-breaker in ENTER_EXECUTOR.

* Make sure that frame->prev_instr is set before entering executor.

Python/ceval_macros.h

@@ -117,7 +117,9 @@
 #define CHECK_EVAL_BREAKER() \
     _Py_CHECK_EMSCRIPTEN_SIGNALS_PERIODICALLY(); \
     if (_Py_atomic_load_relaxed_int32(&tstate->interp->ceval.eval_breaker)) { \
-        goto handle_eval_breaker; \
+        if (_Py_HandlePending(tstate) != 0) { \
+            goto error; \
+        } \
     }