3 bugs in the spec were uncovered due to this work
Usage instructions:
# Bootstrap Go implementation:
./make.bash
GOARCH=386 go tool dist bootstrap
GOARCH=arm go tool dist bootstrap
GOARCH=386 go install std
GOARCH=arm go install std
go install -race -a std
go install -a std
# Download binaries:
go get -u code.google.com/p/gosmith/gosmith
go get -u code.google.com/p/go.tools/cmd/ssadump
# Test:
go run driver.go -checkers=amd64,386,arm,exec