native: quoted version of foldAll is broken, revert
native: clean up skeleton definitions a bit
native: fix for scanl1 execution
changes from llvm-general-quote to generalise (.=.)
minor cleanups
TRUTH
comment wibble
ptx: start cleaning up the skeleton definitions
ptx: start cleaning up fold kernels

I have mixed feelings about using quasi quotation for LLVM IR...

Incidentally, fix an inverted logic bug in the (inline) redefinition of min.
wibble
ptx: clean up mkFoldByWarp