This patch to the Go frontend adjusts the frontend code to avoid shadowing local variables, to be clean with the proposed -Wshadow=local option. This also add a couple of missing calls to free after mpz_get_str. This is based on a patch by Bernd Edlinger. Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu. Committed to mainline.
Unfortunately GMail has decided to reject the patch attachment. It can be seen at https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=276579 or https://golang.org/cl/198837. Ian
