Initialize ICU data files in d8 and disable i18n for other code samples

BUG=v8:2745
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18899002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15572 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ARM: Do not omit the write-barrier if the input value is a smi.
The input value isn't what is written into the field if the representation is double. A heap-number is written to the field instead; which requires a write-barrier.

BUG=chromium:254570
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/18854018

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00