Squashed 'tests/files/' changes from ab81bf2..d6fe94a

d6fe94a Merge branch 'develop' of https://github.com/ethereum/tests into develop
cae0693 more fuzz test failures
2110806 fix mem test
049c4d3 Merge remote-tracking branch 'origin' into develop
6025e7b stack size 1024 fix
97655c7 add JS fails
90fe120 JS fails
e8a6964 JS fail

git-subtree-dir: tests/files
git-subtree-split: d6fe94ad047557531c83b551eb78a7a5838feaa4