* fixed converting boolean to int64/qword
* fixed register allocation bugs which could cause internalerror 10
* isnode and asnode are completely processor indepent now as well
* fpc_do_as now returns its class argument (necessary to be able to use it
properly with compilerproc)
related things) to processor independent code (in new ncgflw unit)
+ generic cgobj unit which contains lots of code generator helpers with
global "cg" class instance variable
+ cgcpu unit for i386 (implements processor specific routines of the above
unit)
* updated cgbase and cpubase for the new code generator units
* include ncgflw unit in cpunode unit
+ nopt.pas, nadd.pas, i386/n386opt.pas: optimized nodes for adding strings
and constant strings/chars together
* n386add.pas: don't copy temp strings (of size 256) to another temp string
when adding
