TEST=compile with component=shared_library and soname_version=1.2.3 and find "libv8-1.2.3.so" in the output.

Review URL: http://codereview.chromium.org/7848017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9196 ce2b1a6d-e550-0410-aec6-3dcde31c8c00