ZEND_AST_YIELD_FROM 1369 Zend/zend_ast.c 		case ZEND_AST_YIELD_FROM:
ZEND_AST_YIELD_FROM 7189 Zend/zend_compile.c 		case ZEND_AST_YIELD_FROM:
ZEND_AST_YIELD_FROM  961 Zend/zend_language_parser.y 	|	T_YIELD_FROM expr { $$ = zend_ast_create(ZEND_AST_YIELD_FROM, $2); }