gh-100239: specialize long tail of binary operations (#128722)

Python/optimizer_cases.c.h

@@ -562,6 +562,19 @@
             break;
         }
 
+        case _GUARD_BINARY_OP_EXTEND: {
+            break;
+        }
+
+        case _BINARY_OP_EXTEND: {
+            _Py_UopsSymbol *res;
+            res = sym_new_not_null(ctx);
+            stack_pointer[-2] = res;
+            stack_pointer += -1;
+            assert(WITHIN_STACK_BOUNDS());
+            break;
+        }
+
         case _BINARY_SUBSCR: {
             _Py_UopsSymbol *res;
             res = sym_new_not_null(ctx);