Go testsuite: update existing tests to source repo

[Ian Lance Taylor via Gcc-patches]

I've committed a patch to update the existing Go tests, the ones under
go.test, to the versions in the source repo at
https://go.googlesource.com/.  This does not include any of the new
tests, just updates the ones we already have and removes the ones that
no longer exist in the source.  The attached patch omits some of the
removed files, as they are large.  Bootstrapped and ran Go testsuite
on x86_64-pc-linux-gnu.  Committed to mainline.

Ian

patch.txt.bz2
Description: application/bzip