* harbour/doc/destruct.txt
* update description for multiple inherited destructors
* harbour/source/compiler/complex.c
* _HB_CLASS and _HB_MEMBER are not longer reserved words
* harbour/include/hbclass.ch
* harbour/include/hbexprop.h
* harbour/include/hbexprb.c
* harbour/source/macro/macro.y
* harbour/source/compiler/harbour.y
* formatting and minor code cleanup
* harbour/source/compiler/hbusage.c
* added missing information about -undef:<id> switch to usage
description
* harbour/source/compiler/gencc.c
! fixed bug reported by Teo in code generated for SWITCH statement
+ harbour/doc/destruct.txt
+ added description for object destructors in Harbour
* harbour/include/error.ch
+ added new error code EG_DESTRUCTOR
* harbour/source/lang/msgpl852.c
* harbour/source/lang/msgpliso.c
* harbour/source/lang/msgplmaz.c
* harbour/source/lang/msgplwin.c
* harbour/source/rtl/langapi.c
+ added desription for new error code - other language modules
have to be updated
* harbour/include/hbapi.h
+ added hb_gcRefCheck() and cover some hb_gc* functions by
_HB_API_INTERNAL_ macro
* harbour/source/vm/itemapi.c
! fixed possible RT error generation when some exception is active
* harbour/include/hbapicls.h
* harbour/include/hbclass.ch
* harbour/include/hboo.ch
* harbour/source/rtl/tclass.prg
* harbour/source/vm/arrays.c
* harbour/source/vm/classes.c
+ added support for object destructors
* harbour/source/vm/garbage.c
+ added support for object destructors
+ added logic to detect buggu .prg code which uses destructors
see doc/destruct.txt for more info.
It's also possible that this code will exploit some bugs
in other code which uses GC allocated memory blocks.
