* applied patch from bug-report #1076292,

* applied patch from bug-report #1076292,
* applied patches for genAnd and Goto-optimizations for Raphael
Neider,
* src/SDCCicode.c (printOperand): fixed !REGA source to compile and
dump a less iCode information,
* src/pic16/device.h (pic16_options_t): added field debgen,
* src/pic16/gen.h: added macros DUMP_FUNCTION_ENTRY,
DUMP_FUNCTION_EXIT, FENTRY, FENTRY2,
* src/pic16/gen.c (my_powof2): renamed to pic16_my_powof2 and made
puclic,
* (various functions): added macros FENTRY and FENTRY2 to functions,
to emit function prologue,
* (various functions): fixed indentation,
* (genNearPointerGet): fixed loading of FSR0,
* (genPackBits): applied patch from Raphael Neider to fix updating
of FSR0 and touching only the modified bits,
* src/pic16/genarith.c (various functions): added macros FENTRY to
emit function prologue in comments,
* src/pic16/pcode.h: added functions debugf2, debugf3,
* src/pic16/ralloc.c: partial fix for packForPush caused
segmentation fault,

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3603 4a8a32a2-be11-0410-ad9d-d568d2c75423