[project @ 2001-12-17 18:03:08 by sewardj]

[project @ 2001-12-17 18:03:08 by sewardj]
Redo translation of array indexing primops in order to insert 8 <-> 32
bit casts when dealing with Char arrays.  Also facilitate future removal
of CMem and MO_{Read,Write}OSBI.

In the process, notice and fix a large bogon in x86/sparc implementation
of signed and unsigned integer widening.