* support/Util/SDCCerr.h,

* support/Util/SDCCerr.h,
* support/Util/SDCCerr.c (E_NOT_ALLOWED),
* src/SDCC.y (struct_declaration, struct_or_union_specifier): complain
about storage class and 'at' used inside struct or union
* src/SDCCBBlock.c (iCodeFromeBBlock),
* src/SDCCcse.c (ifxOptimize),
* src/SDCCglue.c (emitRegularMap, initPointer, printIvalStruct,
printIvalArray, printiValFuncPtr, printIvalCharPtr, printIvalPtr,
printIval, emitStaticSeg, emitOverlay),
* src/SDCClabel.c (deleteIfx),
* src/SDCCopt.c (replaceRegEqv, eBBlockFromiCode),
* src/SDCCast.c (resolveSymbols, createIvalStruct, createIvalArray,
gatherAutoInit, processParms),
* support/Util/SDCCerr.h,
* support/Util/SDCCerr.c (werrorfl): Support for better error location
reporting for post-parse errors.

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3061 4a8a32a2-be11-0410-ad9d-d568d2c75423