* as/hc08/Makefile.bcc, as/hc08/Makefile.in, as/hc08/as_hc08.dsp,

  as/mcs51/Makefile.bcc, as/mcs51/Makefile.in, as/mcs51/asx8051.dsp,
  as/z80/Makefile.bcc, as/z80/Makefile.in, as/z80/as_gbz80.dsp,
  as/z80/as_z80.dsp: added dbuf.[ch] and dbuf_string[ch] to project
* as/asxxsrc/aslex.c: use dbuf_getline()
* as/hc08/asdata.c, as/hc08/asexpr.c, as/hc08/asm.h, as/hc08/m08adr.c,
  as/mcs51/asdata.c, as/mcs51/asexpr.c, as/mcs51/asm.h,
  as/mcs51/i51adr.c, as/z80/asdata.c, as/z80/asexpr.c, as/z80/aslist.c,
  as/z80/asm.h, as/z80/z80adr.c:
  changed type of ib and ip to const char *

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4988 4a8a32a2-be11-0410-ad9d-d568d2c75423