We need much more information for this. Can you provide one patch against branches/1.5 that brings over all the code needed -- and tell us how you've tested this?

Set owner to @scheglov.
Removed MergeToDev, Area- labels.
Added MergeToStable, Area-Editor, NeedsInfo labels.
Changed the title to: "Please merge following CLs into branches/1.5 to reduce editor memory usage".

See attached consolidated patch against 1.5 branch.

It passes all Engine unit tests and Editor tests.
I tested manually that search, refactorings and type hierarchy UI features work.

I also tested that it really has a low memory usage, using a profiler.

Attachment:
split-index.diff (225.75 KB)

Added Triaged label.

Thanks, Konstantin! We will give this a try next week.

cc @scheglov.
Set owner to @ricowind.

This is now on stable builders, but it broke the plugins build, see:http://build.chromium.org/p/client.dart/builders/dart-editor-stable/builds/34/steps/dart-editor-stable/logs/stdio

I don't think you have applied the patch correctly.
It seems that the new files have not been added.
They are in the patch, but not in the repository.

Attachment:
[Screen Shot 2014-07-07 at 10.26.23 AM.png](https://storage.googleapis.com/google-code-attachments/dart/issue-19830/comment-5/Screen Shot 2014-07-07 at 10.26.23 AM.png) (225.88 KB)

Yes, sorry about that, I am landing a fix.

Fixed in revision r38031

Added Fixed label.