[perl6/specs] d519b6: Temp values default to boxed unless 'use native'

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: d519b6f5d83306c24065e5831388652084976374
      
https://github.com/perl6/specs/commit/d519b6f5d83306c24065e5831388652084976374
  Author: Larry Wall <la...@wall.org>
  Date:   2013-12-28 (Sat, 28 Dec 2013)

  Changed paths:
    M S02-bits.pod

  Log Message:
  -----------
  Temp values default to boxed unless 'use native'

Attempt to bring some correctness (with the option for speed) to
the use of builtin operators that might return boxed or unboxed
values.  Also wave hands feebly about native literals.

Attempts to resolve #8.