[fpc-pascal] FPC's generics

[Bisma Jayadi]

> I think it is useful, because it allows future language extensions to 
> also use the <> syntax without conflicting with generics (e.g., the 
> Objective Pascal draft syntax also makes use of angle brackets for a 
> couple of things).

Then my second syntax proposal might overcome possible conflict with future or 
other <> symbol implementation, since it uses no <> symbol at all, and IMO more 
pascalish (less cryptic). :-D

In short, my second syntax proposal is:

- generic definition syntax (type section):
   {type_name} = generic {type_definition} of {generic_holder} ;

- generic implementation syntax (var section):
   {var_name} : specialize {generic_type} for {implemented_type} ;
   or if it's defined in type section:
   {type_name} = specialize {generic_type} for {implemented_type} ;

-Bee-

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