Setting CC and CXX to point to our clang prebuilts on mac fails to build with:
_cgo_export.c:3:10: fatal error: 'stdlib.h' file not found
Skip setting CC and CXX on mac to go back to using the host linker.
Change-Id: I9bab4cda961874c381eacc34397cc67f62fd4730
Test: treehugger
Add go test -race -short to run-soong-tests-with-go-tools.sh to make
the tests run in presubmit with the race detector enabled.
Test: presubmit
Change-Id: I3162a46ebef965879915c0b534821d922392f1f8
Move the logic that runs Soong tests with go tools from
prebuilts/build-tools/build-prebuilts.sh to
build/soong/scripts/run-soong-tests-with-go-tools.sh.
Test: build/soong/scripts/run-soong-tests-with-go-tools.sh
Change-Id: Ice6532a1bdc53291d791af0c4001406fa47c9537