Fix for typecheck doesn't notice compile errors in test files

- ensure we add all the staging modules so the _test files in there are "loaded"
- use build tags to skip tests that fail to build in specific os/arch pairs

Signed-off-by: Davanum Srinivas <davanum@gmail.com>
Co-Authored-By: Tim Hockin <thockin@google.com>

hack/verify-typecheck.sh

@@ -26,6 +26,17 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 cd "${KUBE_ROOT}"
 
 kube::golang::setup_env
+kube::util::require-jq
+
+if [[ $# == 0 ]]; then
+  # Doing it this way is MUCH faster than simply saying "all", and there doesn't
+  # seem to be a simpler way to express "this whole workspace".
+  packages=()
+  kube::util::read-array packages < <(
+      go work edit -json | jq -r '.Use[].DiskPath + "/..."'
+  )
+  set -- "${packages[@]}"
+fi
 
 ret=0
 TYPECHECK_SERIAL="${TYPECHECK_SERIAL:-false}"