Context: Add ; as operator.

Author: udan11

src/Context.php

@@ -107,7 +107,7 @@ abstract class Context
         ':='  =>  8,
 
         // @see Token::FLAG_OPERATOR_SQL
-        '('   => 16, ')'    => 16, '.'   => 16,  ','  => 16,
+        '('   => 16, ')'    => 16, '.'   => 16,  ','  => 16, ';' => 16,
     );
 
     /**