WIP: Migrate generated bindings to new ExceptionState constructor.

LayoutTests/storage/indexeddb/objectstore-autoincrement-expected.txt

 Test IndexedDB's IDBObjectStore auto-increment feature.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
 indexedDB = self.indexedDB || self.webkitIndexedDB || self.mozIndexedDB || self.msIndexedDB || self.OIndexedDB;
 
 dbname = "objectstore-autoincrement.html"
 indexedDB.deleteDatabase(dbname)
 indexedDB.open(dbname)
@@ skipping 40 matching lines @@
 store.get(6)
 getAbrahamSuccess():
 PASS event.target.result.name is "Abraham"
 PASS event.target.result.number is "2107"
 store = trans.objectStore('PlainOldStore')
 Try adding with no key to object store without auto increment.
 Expecting exception from store.add({name: 'Adam'})
 PASS Exception was thrown.
 PASS code is 0
 PASS ename is 'DataError'
-Exception message: The object store uses out-of-line keys and has no key generator and the key parameter was not provided.
+Exception message: Failed to execute 'add' on 'IDBObjectStore': The object store uses out-of-line keys and has no key generator and the key parameter was not provided.
 store.add({name: 'Adam'}, 1)
 addAdamSuccess():
 PASS event.target.result is 1
 testLongKeyPath():
 trans = db.transaction('StoreWithLongKeyPath', 'readwrite')
 store = trans.objectStore('StoreWithLongKeyPath')
 store.add({foo: 'bar'})
 store.add({foo: 'bar', a: {}})
 store.add({foo: 'bar', a: {b: {}}})
 store.add({foo: 'bar', a: {b: {c: {}}}})
 store.openCursor()
 expected = null
 count = 0
 expected = cursor.value.a.b.c.id + 1
 PASS cursor.value.foo is "bar"
 PASS cursor.value.a.b.c.id is expected
 expected = cursor.value.a.b.c.id + 1
 PASS cursor.value.foo is "bar"
 PASS cursor.value.a.b.c.id is expected
 expected = cursor.value.a.b.c.id + 1
 PASS cursor.value.foo is "bar"
 PASS cursor.value.a.b.c.id is expected
 expected = cursor.value.a.b.c.id + 1
 PASS count is 4
 PASS successfullyParsed is true
 
 TEST COMPLETE