* harbour/source/debug/debugger.prg
* removed some unused var, formatting
* harbour/source/pp/ppcore.c
* harbour/source/common/expropt1.c
* harbour/source/common/expropt2.c
* harbour/source/common/hbdate.c
* casting
* harbour/source/common/hbstr.c
* casting
* use HB_ISSPACE() instead of isspace() for strict Clipper
compatibility
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
! never use 'char' to 'int' casting for parameters of
toupper()/to*()/isuper()/is*() functions