Self-test failure on 32-bit i386 platform

[jas4711]

Hi! I'm packaging your project for inclusion into Debian. Do you have any generic considerations related to that? While doing so I noticed that one of the self-tests fail on 32-bit platforms. Do you have some idea how to rewrite this so it works on 32-bit archs too?

# github.com/nlpodyssey/gopickle/pickle [github.com/nlpodyssey/gopickle/pickle.test]
src/github.com/nlpodyssey/gopickle/pickle/pickle_test.go:101:42: cannot use 100200300400 (untyped int constant) as int value in argument to loadsNoErrEqual (overflows)
src/github.com/nlpodyssey/gopickle/pickle/pickle_test.go:106:43: cannot use -100200300400 (untyped int constant) as int value in argument to loadsNoErrEqual (overflows)
src/github.com/nlpodyssey/gopickle/pickle/pickle_test.go:357:50: cannot use 100200300400 (untyped int constant) as int value in argument to loadsNoErrEqual (overflows)
src/github.com/nlpodyssey/gopickle/pickle/pickle_test.go:362:62: cannot use -100200300400 (untyped int constant) as int value in argument to loadsNoErrEqual (overflows)
FAIL	github.com/nlpodyssey/gopickle/pickle [build failed]

Thanks,
Simon