* src/z80/peeph-z80.def: removed some peephole rules that don't

* src/z80/peeph-z80.def: removed some peephole rules that don't
work with multibyte arithmetic (fixed bug #937126)
* src/mcs51/peeph.def: fixed peephole rules 150-158 to apply only
to registers and not global variables
* src/SDCCicode.c (geniCodeAssign, ast2iCode, geniCodePostInc,
geniCodePreInc, geniCodePostDec, geniCodePreDec,
geniCodeLogicAndOr, geniCodeConditional): enforce strict lvalue
checking for assignments not internally generated (fixed bug #931895)
* src/SDCC.y (postfix_expr): ignore typedefs when looking for a
structure member (fixed bug #930072)

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3293 4a8a32a2-be11-0410-ad9d-d568d2c75423