IndexedDB 2.0: Clean up some exception ordering.

IndexedDB 2.0: Clean up some exception ordering.
https://bugs.webkit.org/show_bug.cgi?id=164566

LayoutTests/imported/w3c:

Reviewed by NOBODY (OOPS!).

* IndexedDB-private-browsing/idbcursor_advance_index7-expected.txt:
* IndexedDB-private-browsing/idbcursor_continue_index7-expected.txt:
* web-platform-tests/IndexedDB/idbcursor_advance_index7-expected.txt:
* web-platform-tests/IndexedDB/idbcursor_continue_index7-expected.txt:
* web-platform-tests/IndexedDB/idbobjectstore_createIndex14-exception_order-expected.txt:

Source/WebCore:

Reviewed by Alex Christensen.

No new tests (Covered by existing tests).

* Modules/indexeddb/IDBCursor.cpp:
(WebCore::IDBCursor::advance):
(WebCore::IDBCursor::continueFunction):

* Modules/indexeddb/IDBObjectStore.cpp:
(WebCore::IDBObjectStore::createIndex):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@208518 268f45cc-cd09-0410-ab3c-d52691b4dbfc