Fix cli test

Set the ZEND_CALL_GENERATOR flag on the fake frame also, and set the func field
for the empty top frame in cli, to be safe.

Author: iluuu1994

Zend/zend_builtin_functions.c

@@ -1725,7 +1725,7 @@ ZEND_API void zend_fetch_debug_backtrace(zval *return_value, int skip_last, int
 	}
 
 	while (call && (limit == 0 || frameno < limit)) {
-		if (UNEXPECTED(!call->func)) {
+		if (UNEXPECTED((ZEND_CALL_INFO(call) & ZEND_CALL_GENERATOR) && !call->func)) {
 			/* This is the fake frame inserted for nested generators. Normally,
 			 * this frame is preceded by the actual generator frame and then
 			 * replaced by zend_generator_check_placeholder_frame() below.

Zend/zend_vm_def.h

@@ -4473,6 +4473,7 @@ ZEND_VM_HANDLER(139, ZEND_GENERATOR_CREATE, ANY, ANY)
 		generator->execute_fake.func = NULL;
 		generator->execute_fake.prev_execute_data = NULL;
 		ZVAL_OBJ(&generator->execute_fake.This, (zend_object *) generator);
+		ZEND_ADD_CALL_FLAG(&generator->execute_fake, ZEND_CALL_GENERATOR);
 
 		gen_execute_data->opline = opline + 1;
 		/* EX(return_value) keeps pointer to zend_object (not a real zval) */

Zend/zend_vm_execute.h

@@ -1075,6 +1075,7 @@ static int do_cli(int argc, char **argv) /* {{{ */
 					object_init_ex(&ref, pce);
 
 					memset(&execute_data, 0, sizeof(zend_execute_data));
+					execute_data.func = (zend_function *) &zend_pass_function;
 					EG(current_execute_data) = &execute_data;
 					zend_call_known_instance_method_with_1_params(
 						pce->constructor, Z_OBJ(ref), NULL, &arg);