* device/lib/_gptrget.c: also push/pop _PSBANK, added # to 0x03

* device/lib/_gptrget.c: also push/pop _PSBANK, added # to 0x03
* device/lib/_itoa.c,
* device/lib/_ltoa.c: optimized codesize
* src/SDCCsymt.c (checkSClass): added sanity check for sfr at addresses,
  but don't know how to suppress the double warning.
* src/mcs51/gen.c (genPlusIncr): fixed bug when incrementing volatile int's
* support/Util/SDCCerr.c,
* support/Util/SDCCerr.h: added warning W_SFR_ABSRANGE for sanity check

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3790 4a8a32a2-be11-0410-ad9d-d568d2c75423