Working towards a BCCed [next].
This version <i>almost</i> works, except for a problem with restoring the
context namespace upon return (which produces very strange results!)
merge dkf-compile-misc-info
reorder to preserve main BC development branch sequence better
merge main dev branch
merge main dev branch
merge dkf-compile-misc-info
merge main dev branch
merge main dev branch
merge trunk
merge main working branch
merge trunk
remove ill-advised change to assembler
merge trunk
clarify the resume sequence in TEBCresume; make checkInterp a local variable, remove it from the saved struct
more peephole optimizations in TEBC, and better instruction execution traces
merge trunk
more cleaning up of error-case instruction tracing
another jump peephole, this time with string comparisons
factor out a common peephole stanza
more fixes to instruction tracing; ensure all places that need DECACHE_STACK_INFO have it