Fix bug #55445 (Incomplete implementation of <?= being independant of short_open_tag)

Zend/tests/bug55445.phpt

@@ -0,0 +1,8 @@
+--TEST--
+Bug #55445 (Lexer error with short open tags)
+--INI--
+short_open_tag=0
+--FILE--
+<?php $u = "chris"; ?><p>Welcome <?= $u ?></p>
+--EXPECTF--
+<p>Welcome chris</p>

Zend/zend_language_scanner.c

@@ -1,4 +1,4 @@
-/* Generated by re2c 0.13.5 on Tue Aug 16 12:22:59 2011 */
+/* Generated by re2c 0.13.5 on Thu Aug 18 01:37:48 2011 */
 #line 1 "Zend/zend_language_scanner.l"
 /*
    +----------------------------------------------------------------------+
@@ -1099,7 +1099,7 @@ inline_char_handler:
 		if (YYCURSOR < YYLIMIT) {
 			switch (*YYCURSOR) {
 				case '?':
-					if (CG(short_tags) || !strncasecmp(YYCURSOR + 1, "php", 3)) { /* Assume [ \t\n\r] follows "php" */
+					if (CG(short_tags) || !strncasecmp(YYCURSOR + 1, "php", 3) || (*(YYCURSOR + 1) == '=')) { /* Assume [ \t\n\r] follows "php" */
 						break;
 					}
 					continue;

Zend/zend_language_scanner.l

@@ -1780,7 +1780,7 @@ inline_char_handler:
 		if (YYCURSOR < YYLIMIT) {
 			switch (*YYCURSOR) {
 				case '?':
-					if (CG(short_tags) || !strncasecmp(YYCURSOR + 1, "php", 3)) { /* Assume [ \t\n\r] follows "php" */
+					if (CG(short_tags) || !strncasecmp(YYCURSOR + 1, "php", 3) || (*(YYCURSOR + 1) == '=')) { /* Assume [ \t\n\r] follows "php" */
 						break;
 					}
 					continue;

Zend/zend_language_scanner_defs.h

@@ -1,4 +1,4 @@
-/* Generated by re2c 0.13.5 on Sun Jul 31 20:09:38 2011 */
+/* Generated by re2c 0.13.5 on Thu Aug 18 01:37:48 2011 */
 #line 3 "Zend/zend_language_scanner_defs.h"
 
 enum YYCONDTYPE {