* as/mcs51/asmain.c (search_path_append, search_path_fopen): new, added,

  (main): added option -i,
  (asmbl, case S_INCL): use search_path_fopen,
  mostly from patch 1579668 by Peter Miller, thanks
* src/z80/main.c: fixed typo --callee-saves-bc
* device/include/mcs51/compiler.h: added sfrword for Tasking

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4760 4a8a32a2-be11-0410-ad9d-d568d2c75423