WIP: Migrate generated bindings to new ExceptionState constructor.

LayoutTests/fast/events/message-port-clone.html

Index: LayoutTests/fast/events/message-port-clone.html
diff --git a/LayoutTests/fast/events/message-port-clone.html b/LayoutTests/fast/events/message-port-clone.html
index 02f81c8714f90ffca0ead132f0fab013e1ff347d..b738887c39dac0ee28e5e7149b694e40b1022833 100644
--- a/LayoutTests/fast/events/message-port-clone.html
+++ b/LayoutTests/fast/events/message-port-clone.html
@@ -19,14 +19,14 @@ debug("Posting port to entangled pair neuters the port and does nothing else:");
 channel = new MessageChannel;
 var channel2 = new MessageChannel;
 channel.port1.postMessage("msg", [channel.port2]);
-shouldThrow("channel2.port1.postMessage('msg', [channel.port2])", '"DataCloneError: Failed to execute \'disentanglePorts\' on \'MessagePort\': Item #0 in the array of ports is already neutered."');
+shouldThrow("channel2.port1.postMessage('msg', [channel.port2])", '"DataCloneError: Failed to execute \'postMessage\' on \'MessagePort\': Item #0 in the array of ports is already neutered."');
 
 channel = new MessageChannel;
 channel2 = new MessageChannel
 channel.port1.postMessage("msg", [channel2.port1]);
 
 // Should not be able to post a cloned port.
-shouldThrow("channel.port1.postMessage('msg', [channel2.port1])", '"DataCloneError: Failed to execute \'disentanglePorts\' on \'MessagePort\': Item #0 in the array of ports is already neutered."');
+shouldThrow("channel.port1.postMessage('msg', [channel2.port1])", '"DataCloneError: Failed to execute \'postMessage\' on \'MessagePort\': Item #0 in the array of ports is already neutered."');
 
 // Test posting messages to a port in cloned state.