Small cleanup
Cleanup expand code
Merge branch 'master' of https://github.com/samth/pycket
add reset method to ModTable to clear the global state
Merge branch 'master' of https://github.com/samth/pycket
Fix translation error
Make unbox/set-box continuations immutable fields
Mark struct continuations as immutable
Fix API of impersonate/chaperone-procedure to match Racket documentation
Add support for chaperoned accessors/mutator for structs
Add additional test for proc impersonators
Fix parse error
Merge branch 'master' into structs
add W_CallableStruct, wrapper class for W_Structs that contain proc:procedure