Lowering fix after f6ecea1 cherry-pick

evaluate::Parentheses can now be built for derived types, do not except
all Parentheses templates to be Type<Cat, Kind> like, it can be
SomeDerived.

Author: jeanPerier

flang/lib/Lower/ConvertExpr.cpp

@@ -2658,10 +2658,8 @@ class ScalarArrayExprLowering {
     return fir::factory::ComplexExprHelper{builder, getLoc()}
         .extractComplexPart(fir::getBase(exv), x.isImaginaryPart);
   }
-  template <Fortran::common::TypeCategory TC, int KIND>
-  ExtValue
-  gen(const Fortran::evaluate::Parentheses<Fortran::evaluate::Type<TC, KIND>>
-          &x) {
+  template <typename T>
+  ExtValue gen(const Fortran::evaluate::Parentheses<T> &x) {
     auto exv = gen(x.left());
     auto base = fir::getBase(exv);
     auto newBase =
@@ -4281,10 +4279,8 @@ class ArrayExprLowering {
           lhs, isImagPart);
     };
   }
-  template <Fortran::common::TypeCategory TC, int KIND>
-  CC genarr(
-      const Fortran::evaluate::Parentheses<Fortran::evaluate::Type<TC, KIND>>
-          &x) {
+  template <typename T>
+  CC genarr(const Fortran::evaluate::Parentheses<T> &x) {
     auto loc = getLoc();
     auto f = genarr(x.left());
     return [=](IterSpace iters) -> ExtValue {