Commits on Nov 5, 2015

1. Evaluate parens in refinement dispatch, ~10% speedup …

   The previous semi-hack of an evaluation trick so that get-words would
   evaluate in paths has been upgraded to a much less hacky trick.  This
   now allows for the evaluation of parens to be used to get the words to
   use as refinements in dispatch:
   
       >> append/(first [only])/(to-word "dup") [a b c] [d e] 2
       == [a b c [d e] [d e]]
   
   The method by which this is done--as well as reducing the number of
   writes done into call frames--has improved performance in a build of
   the hostilefork.com using the static builder by 10%.  This means Ren/C
   optimized non-debug builds are--for the first time--are ever so slightly
   faster than the rebolsource download (in that measurement).

   

   hostilefork committed Nov 5, 2015
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