[parrot/parrot] d81569: [pcc] use the direct CallContext methods GH #1083

[GitHub]

  Branch: refs/heads/pcc-gh1083
  Home:   https://github.com/parrot/parrot
  Commit: d815693c46482ebcecf1f9796a59b92122f11047
      https://github.com/parrot/parrot/commit/d815693c46482ebcecf1f9796a59b92122f11047
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2014-08-05 (Tue, 05 Aug 2014)

  Changed paths:
    M src/call/args.c
    M src/call/context.c
    M src/call/pcc.c

  Log Message:
  -----------
  [pcc] use the direct CallContext methods GH #1083

and do not use the CallContext vtable methods anymore.
also inline one Continuation_set_pointer call.

in fill_params() it is safe to use CallContext directly, as
it assumes either NULL or CallContext, but never PMCNULL.

all tests still passing, 1.63% faster.