Fixed exception use

Author: dantleech

features/all/phpcr_query_update.feature

@@ -140,3 +140,16 @@ Feature: Execute a a raw UPDATE query in JCR_SQL2
         And the node at "/cms/articles/article1" should have the mixin "mix:mimeType"
         Then the node at "/cms/articles/article1" should have the mixin "mix:lockable"
 
+    Scenario Outline: Execute an invalid query
+        Given I execute the "<query>" command
+        Then the command should fail
+        And I should see the following:
+        """
+        InvalidQueryException
+        """
+        Examples:
+            | query |
+            | UPDATE foo FOR fi |
+            | UPDATE [nt:unstructured] mixin_foo('bar') |
+            | UPDATE [nt:unstructured] APPLY mixin_foo('bar') |
+            | UPDATE [nt:unstructured] mixin_foo'bar') |

src/PHPCR/Shell/Query/FunctionOperand.php

@@ -3,6 +3,7 @@
 namespace PHPCR\Shell\Query;
 
 use PHPCR\Query\RowInterface;
+use PHPCR\Query\InvalidQueryException;
 
 /**
  * Simple class to represent function operands in query