Recover from missing semicolon after property or class const

Fixes nikic#712.

Author: nikic

grammar/php7.y

@@ -630,10 +630,10 @@ class_statement_list:
 ;
 
 class_statement:
-      optional_attributes variable_modifiers optional_type_without_static property_declaration_list ';'
+      optional_attributes variable_modifiers optional_type_without_static property_declaration_list semi
           { $$ = new Stmt\Property($2, $4, attributes(), $3, $1);
             $this->checkProperty($$, #2); }
-    | optional_attributes method_modifiers T_CONST class_const_list ';'
+    | optional_attributes method_modifiers T_CONST class_const_list semi
           { $$ = new Stmt\ClassConst($4, $2, attributes(), $1);
             $this->checkClassConst($$, #2); }
     | optional_attributes method_modifiers T_FUNCTION optional_ref identifier_ex '(' parameter_list ')' optional_return_type method_body