RFA: Changes to interpreter to avoid non-debugging slowdown

[Kyle Galloway]

I noticed a small error in my last patch.  I accidentally whacked out an
include in stacktrace.cc which will cause some problems.  The new patch
is included in this file.

Changelog (same as before):

2006-07-28  Kyle Galloway  <kgallowa@redhat.com>

  * include/java-interp.h (_Jv_InterpMethod::run_debug): New method.
  * interpret.cc: Added placeholder for debug variable type info to STORE*
  macros.
  (_Jv_InterpMethod::run_debug): New method.
  (_Jv_InterpMethod::run_sync_object_debug): New method.
  (_Jv_InterpMethod::run_sync_class_debug): New method.
  (_Jv_InterpMethod::run_normal_debug): New method.
  (_Jv_InterpMethod::run_class_debug): New method.
  (_Jv_InterpMethod::ncode ()): Changed to select either debug or normal
  versions of these functions.
  * interpret-run.cc: New file, holds contents of old 	
_Jv_InterpMethod::run
  method.
  * stacktrace.cc (_Jv_StackTrace::UnwindTraceFn): Changed to select
  appropriate function for debug or normal mode.
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