[pge]: * chromatic's use.perl.org journal post showed that PGE was generating   lots of runtime concat operations that could be performed at compile   time - this change removes those for a slight (1%) speedup.
[pge]:
* chromatic's use.perl.org journal post showed that PGE was generating
  lots of runtime concat operations that could be performed at compile
  time - this change removes those for a slight (1%) speedup.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@27080 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

FROGGS/parrot,tkob/parrot,tkob/parrot,parrot/parrot,gitster/parrot,fernandobrito/parrot,gitster/parrot,gitster/parrot,gagern/parrot,FROGGS/parrot,fernandobrito/parrot,FROGGS/parrot,tewk/parrot-select,gitster/parrot,tkob/parrot,gitster/parrot,fernandobrito/parrot,FROGGS/parrot,parrot/parrot,tewk/parrot-select,gagern/parrot,fernandobrito/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,FROGGS/parrot,gitster/parrot,tewk/parrot-select,gagern/parrot,tewk/parrot-select,FROGGS/parrot,tkob/parrot,youprofit/parrot,youprofit/parrot,gagern/parrot,fernandobrito/parrot,fernandobrito/parrot,youprofit/parrot,FROGGS/parrot,parrot/parrot,tkob/parrot,gagern/parrot,tewk/parrot-select,tkob/parrot,gagern/parrot,tewk/parrot-select,gagern/parrot,FROGGS/parrot,gitster/parrot,youprofit/parrot,parrot/parrot,parrot/parrot,tkob/parrot,fernandobrito/parrot,tkob/parrot,tewk/parrot-select