add more signal mappings
add more signal codes to the Signal enum
optimize METAOP_ASSIGN by kind-of-sort-of-inlining
profiler: p6getouterctx allocates
let's constant-fold metaop_negate and metaop_reverse, too
i prefer eqat to index ... == 0
Allow :nth(*-1) for masak++.
Remove () from use of constants in IO::Socket::INET

Otherwise IO::Socket::INET.new(:host<feather.perl6.nl>, :port(3000),
:family(2)) fails
update case functions in deftraps
Unbust tmpdir on Windows.

Fixes S16-io/tmpdir.t.
Fix IO::Spec::Cygwin.rel2abs on Windows.

The tests (I think correctly) don't expect to end up with a volume,
but because we delegate to Windows rel2abs on Cygwin then tweak the
slashes, we end up with one. Not sure this is the best fix, though it
is better than the other obvious alternative (let the drive letter be
put on by IO::Spec::Win32, then strip it off in IO::Spec::Cygwin).
Bump NQP_REVISION for signals, Moar perf fix.
Merge pull request #303 from carbin/nom

Handle more signals
attempt to fix RT #123215
fix value of chained colonpairs in ( )
fix chained colonpairs in curlies, resolves RT #123215
optimize METAOP_ASSIGN in-place (benefits += in sink context)
Avoid scalar allocations in DIVIDE_NUMBERS

timotimo++ for coming up with the idea, and benchmarking/profiling
make DIVIDE_NUMBERS friendlier to block inlining
Fix error reporting inside the setting

without thsi patch, at least r-m always printed the last key for all elements