JavaScriptCore is missing debug info for bmalloc because libbmalloc.a is stripped
<https://webkit.org/b/138286>
<rdar://problem/18847087>

Reviewed by Dan Bernstein.

* Configurations/bmalloc.xcconfig: Set STRIP_INSTALLED_PRODUCT
to NO for the target that produces libbmalloc.a so that the
debug symbols will be linked into JavaScriptCore and end up in
its dSYM file.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@175455 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed gardening.

Mark jquery/manipulation.html as slow on Debug builds until I can
investigate how to avoid this with timer throttling.

* TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@175456 268f45cc-cd09-0410-ab3c-d52691b4dbfc