fix tests that segfaultet
(krono, timfel) fix closure detection when creating a MethodContext shadow
skip test on CI that fails there
added as_repr_string to word_objects to have the correct class-string part
changed beCursorWithMask: to also accept forms as argument (BE_CURSOR primitive)
added VM_PARAMETERS primitive
the behavior is wrong in that all arguments are ignored and all return values are 0, but it doesn't fail anymore and during startup, return values are not checked
added CTXT at:, at:put:, size primitives the same way they are added in COG, by using the AT, AT_PUT, SIZE primitive functions which should dispatch onto the W_Object methods.
The result is that infinite debugger loops are replaced by an out-of-bounds access ...
fixed whitespace
added interrupt_key primitive (133)
refactored mod-keys to also apply to normal keys beside mouse-klicks
added 32bit bitblit form
fixed the infect of creating blockclosures with non-st-compliant pc offsets
added store stackpointer primitive
in later squeak versions, instead of having in alternative implementation in case of primitive-failure an error is raised.
added IDLE_FOR_MICROSECONDS primitive, prolonging the idle-waiting minimaly
fixed the signature of GET_NEXT_EVENT
signal and wait primitives return the receiver, not the context...
added external call primitive and support BitBltPlugin>>primitiveCopyBits (redirecting to primitive BITBLT_COPY)
(tfel, lwassermann): added 16 Bit BitBlt Form
(tfel, lwassermann): refactored force_display_update primitive to use space>>get_display()
- renamed __w_method to _w_method to comply with python naming scheme again
- enlarged small contexts to 16 and large contexts to 56 maximal stackdepth
  those are the numbers used by Squeak 4.4
fixed the test problems
(lwassermann, timfel) fix nlr when underflowing python c stack