Add codegen support for dictionaries, and implement Event bindings as…

… a side-effect. Add a stub EventTarget to allow the build to complete.

src/servo/dom/bindings/codegen/Bindings.conf

@@ -116,13 +116,11 @@ DOMInterfaces = {
 'ClientRect': [
 {
     'nativeType': 'ClientRect',
-    'pointerType': '@mut '
 }],
 
 'ClientRectList': [
 {
     'nativeType': 'ClientRectList',
-    'pointerType': '@mut '
 }],
 
 'CSS2Properties': {
@@ -137,7 +135,6 @@ DOMInterfaces = {
 
 'DOMParser': {
     'nativeType': 'DOMParser',
-    'pointerType': '@mut '
 },
 
 'DOMSettableTokenList': [
@@ -160,10 +157,9 @@ DOMInterfaces = {
 
 'Event': [
 {
+    'nativeType': 'Event_'
 },
-{
-    'workers': True,
-}],
+],
 
 'EventListener': [
 {
@@ -174,16 +170,17 @@ DOMInterfaces = {
 
 'EventTarget': [
 {
-    'nativeType': 'nsDOMEventTargetHelper',
-    'hasInstanceInterface': 'nsIDOMEventTarget',
-    'concrete': False,
-    'prefable': True,
+#    'nativeType': 'nsDOMEventTargetHelper',
+#    'hasInstanceInterface': 'nsIDOMEventTarget',
+#    'concrete': False,
+#    'prefable': True,
 },
-{
-    'workers': True,
-    'headerFile': 'mozilla/dom/workers/bindings/EventTarget.h',
-    'concrete': False
-}],
+#{
+#    'workers': True,
+#    'headerFile': 'mozilla/dom/workers/bindings/EventTarget.h',
+#    'concrete': False
+#}
+],
 
 'FileList': [
 {