Removed duplicate test
More closure tests

Signed-off-by: katlogic <git@git.git>
FFI: Fix cdata equality comparison against strings.
Merge branch 'master' into v2.1
FFI: Fix cdata equality comparison against other Lua types.
Merge branch 'master' into v2.1
Merge branch 'v2.1' of http://luajit.org/git/luajit-2.0