[MLIR] Add missing decorative comment line

[frgossen]

Summary

Purely cosmetic change. Add missing decorative comment line.

[mehdi_amini]

(Nit: please use a descriptive title for your commit message)

[rriddle]

mlir/include/mlir/IR/StandardTypes.h

399

This was intentional btw. I use these types of comment blocks to demarcate sub-sections...

//===----------------------------------------------------------------------===//
// Main Section 1
//===----------------------------------------------------------------------===//

//===----------------------------------------------------------------------===//
// Sub-Section

//===----------------------------------------------------------------------===//
// Main Section 2
//===----------------------------------------------------------------------===//

[frgossen]

mlir/include/mlir/IR/StandardTypes.h

399

Ups, sorry.

mlir/include/mlir/IR/StandardTypes.h

public:
   static bool classof(Type type) {
     return type.getKind() == StandardTypes::RankedTensor ||
            type.getKind() == StandardTypes::UnrankedTensor;
   }
 };
 
 //===----------------------------------------------------------------------===//
 // RankedTensorType
+//===----------------------------------------------------------------------===//
 
 /// Ranked tensor types represent multi-dimensional arrays that have a shape
 /// with a fixed number of dimensions. Each shape element can be a non-negative
 /// integer or unknown (represented by -1).
 class RankedTensorType
     : public Type::TypeBase<RankedTensorType, TensorType,
                             detail::RankedTensorTypeStorage> {
 public: