ContextSlotCache::Update() handlified.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/263613003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
StringTable::Lookup*IfExist() handlified.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/265553003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ARM64: use jssp for stack slots

R=bmeurer@chromium.org, ulan@chromium.org

Review URL: https://codereview.chromium.org/262533006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21101 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
When maximum space size flags are set, overwrite the resource constraints.

BUG=
R=rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/262653002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Limit old space size in test which require a large new space.

BUG=

Review URL: https://codereview.chromium.org/265673003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'