PC Toledo

### STRONG TYPED VARIABLES ###
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Harbour and xHarbour allow to declare type of variables using syntax similar
to Visual Object which was adopted also by FlagShip and some other xBase
compatible languages (i.e. FlagShip):
LOCAL var AS STRING
Anyhow so far in both compilers it is only source code decoration and it's
simply ignored during compilation. The syntax is similar but not the same.
In VO:
LOCAL var1, var2 AS LOGICAL
means that var1 and var2 are character variables and are initialized to .F.
at runtime. In Harbour and xHarbour 'AS <type>' has to be repeated after
each variable so in above code only var2 is strongly typed but not var1.
To declare both variables as logical ones it should be changed to:
LOCAL var1 AS STRING, var2 AS STRING
Such syntax is also not compatible with syntax of typed object variables
(see TYPED OBJECT VARIABLES below) where
VAR v1, v2 AS LOGICAL
declares both variables as logical ones.
This can strongly confuse users so in the future adding fully functional
support for strong typed variables probably it will be changed to syntax
compatible with other xBase compatible languages.
Now please remember that neither Harbour nor xHarbour make type validation
during compilation and at runtime and typed variables are not implicitly
initialized to empty value of given type.