Refactor newline handling in zend_scan_escape_string to use HANDLE_NEWLINE macro (php#19112)

Author: ydah

Zend/zend_language_scanner.l

@@ -921,9 +921,7 @@ static zend_result zend_scan_escape_string(zval *zendlval, char *str, int len, c
 			ZVAL_EMPTY_STRING(zendlval);
 		} else {
 			zend_uchar c = (zend_uchar)*str;
-			if (c == '\n' || c == '\r') {
-				CG(zend_lineno)++;
-			}
+			HANDLE_NEWLINE(c);
 			ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR(c));
 		}
 		goto skip_escape_conversion;
@@ -2512,9 +2510,7 @@ inline_char_handler:
 			ZVAL_EMPTY_STRING(zendlval);
 		} else {
 			zend_uchar c = (zend_uchar)*(yytext+bprefix+1);
-			if (c == '\n' || c == '\r') {
-				CG(zend_lineno)++;
-			}
+			HANDLE_NEWLINE(c);
 			ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR(c));
 		}
 		goto skip_escape_conversion;