linking fastfortran scalar variable with famix function name

[uNouss]

for example in this situation:

        INTEGER FCT()
        FCT = 10
        END

at line 2 (lhs of assignment) CRFFortranProgramUnitBinderVisitor >> visitFASTFortranScalarVariable: aFASTFortranScalarVariable
will try to link fct (the var) with (fct the function).
this make this methods fail at assert line.