Last patch for the night.  There's still a bit of minor fallout left in 
GCC (loongarch testsuite for example).  But things are looking good on 
the targets I test.  The plan is to start submitting the various 
newlib/libgloss fixes tomorrow.

Anyway, this test was the one I was most concerned about.  Basically 
we're testing that on a !dfp target that the builtins are not available. 
  It expects a warning, but gets an error by default now.  I just 
changed the test to use -fpermissive, so that the test behaves as it did 
previously.

Pushed to the trunk.
Jeff