ZEND_UNARY_PLUS   305 Zend/zend_ast.c 		case ZEND_UNARY_PLUS:
ZEND_UNARY_PLUS  1039 Zend/zend_language_parser.y 	|	'+' static_scalar_value { $$.u.ast = zend_ast_create_unary(ZEND_UNARY_PLUS, $2.u.ast); }