Let BuildStore/BuildLoad distinguish between keyed/named load/stores.

R=bmeurer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23537024

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ARM: Improve integer multiplication.

TEST=test/mjsunit/lithium/MulI.js
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23452022

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Some thread data simplifications.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/24036002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16577 ce2b1a6d-e550-0410-aec6-3dcde31c8c00