Fixed segfault in unary-op code
Abstract bitfield loading - don't force deref to register

This fixes bitfield access via operator-dot
Show bitfield info on -Xprint
Show bitfield info in out_dump()
Only print decls for code blocks
Updated bitfield tests
Changed signed cast type logic
Added notes/FIXMEs about bitfield alignment
Added to TODO_BITFIELDS
Bitfield truncation warning/check
More bitfield egs
bitfield test changes - bf.c is experimental, bf_lib is uses $CC