Cross-compiling from Linux to Android requires -lrt for the host toolset.

R=yurys@chromium.org

Review URL: https://codereview.chromium.org/23656004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Implement proper map checks of captured objects.

R=verwaest@chromium.org
TEST=mjsunit/compiler/escape-analysis

Review URL: https://codereview.chromium.org/23697002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00