[Patch, fortran] PR31154 , PR31229 and PR33334 - use associated or imported function characteristics.

[Paul Richard Thomas]

This I believe it it:

(i) Have added ST_DERIVED_DECL to the conditions where a check is made
to see if the derived type is available.
(ii) I have corrected the illegailities in derived_function_interface_1.f90.

With this, the patch bootstraps and regtests on x86_ia64/FC5 (no, I
did not miss anything this time!), CP2K compiles and runs, as does
tonto.

OK for trunk?

Paul
-- 
The knack of flying is learning how to throw yourself at the ground and miss.
       --Hitchhikers Guide to the Galaxy
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