* harbour/include/hbcompdf.h
* harbour/include/hbexprb.c
* harbour/source/common/expropt1.c
* harbour/source/compiler/harbour.c
* harbour/source/compiler/harbour.y
* harbour/source/compiler/harbour.yyc
* harbour/source/compiler/hbcomp.c
- removed not longer used fExternal from compiler structure
* allow to pass array items by reference ( func(@a[1]) ) and some
cleanups in reference rules. Probably we should also block using:
@func(param1 [,param2,[,...paramN]])
and accept only @func()
! fixed using statements in codeblocks used to initialize static
variables and some other cleanups (f.e. allow to use as static
initializers any functions which are later eliminated by expression
optimizer.