Rebuild scanner, add NEWS/UPGRADING

Author: bwoebi

NEWS

@@ -77,7 +77,8 @@
   . Implemented the RFC `Constructor behaviour of internal classes`. (Dan, Dmitry)
   . Implemented the RFC `Fix "foreach" behavior`. (Dmitry)
   . Implemented the RFC `Generator Delegation`. (Bob)
-  . Implemented the RFC ` Anonymous Class Support`. (Joe, Nikita, Dmitry)
+  . Implemented the RFC `Anonymous Class Support`. (Joe, Nikita, Dmitry)
+  . Implemented the RFC `Context Sensitive Lexer`. (Marc Almada)
   . Fixed bug #69511 (Off-by-one buffer overflow in php_sys_readlink).
     (Jan Starke, Anatol)
 

UPGRADING

@@ -530,6 +530,8 @@ Other
     (RFC: https://wiki.php.net/rfc/combined-comparison-operator)
   . Added the yield from operator for delegating Generators like coroutines.
     (RFC: https://wiki.php.net/rfc/generator-delegation)
+  . Reserved keywords can now be used in various new contexts.
+    (RFC: https://wiki.php.net/rfc/context_sensitive_lexer)
 
 - OpenSSL
   . Added "alpn_protocols" SSL context option allowing encrypted client/server

Zend/zend_language_parser.y

@@ -52,7 +52,7 @@ static YYSIZE_T zend_yytnamerr(char*, const char*);
 %}
 
 %pure_parser
-%expect 2
+%expect 8 /* 6 because traits */
 
 %code requires {
 }
@@ -278,8 +278,8 @@ semi_reserved:
 	| T_THROW | T_USE | T_INSTEADOF | T_GLOBAL | T_VAR | T_UNSET | T_ISSET | T_EMPTY | T_CONTINUE | T_GOTO
 	| T_FUNCTION | T_CONST | T_RETURN | T_PRINT | T_YIELD | T_LIST | T_SWITCH | T_ENDSWITCH | T_CASE | T_DEFAULT | T_BREAK
 	| T_ARRAY | T_CALLABLE | T_EXTENDS | T_IMPLEMENTS | T_NAMESPACE | T_TRAIT | T_INTERFACE
-	// | T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC
-	// | T_CLASS
+	| T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC
+//	| T_CLASS
 ;
 
 identifier: