run-tests-exp.sh: Typo fix in comment.
py/asm*.c: Typo fixes in comments.
emitnative: Incomplete implementation delete_fast operation.
py: Basic implementation of hotpath recording.
modffi: Support open own executable using open(None).
modffi: Support return values of mp_obj_t type.
unix: Support readline history saving to file, improves interactive usage.
modffi: Add .addr() method to just get symbol address.
binary: Rework array accessors. They work with native, not stdint types.
modffi: Add toplevel func() function to create a function by pointer.
objstr: Fix %d-formatting of floats.