[MLIR] Add includes to PointerLikeTypeTraits where needed.

Summary:
This is to ensure that the template declaration is seen before
any template specialization.

Reviewers: mravishankar, antiagainst, rriddle!

Differential Revision: https://reviews.llvm.org/D75442

mlir/include/mlir/Dialect/SPIRV/SPIRVOps.h

@@ -15,6 +15,7 @@
 
 #include "mlir/Dialect/SPIRV/SPIRVTypes.h"
 #include "mlir/IR/Function.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 class OpBuilder;

mlir/include/mlir/IR/Attributes.h

@@ -12,6 +12,7 @@
 #include "mlir/IR/AttributeSupport.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/Sequence.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 class AffineMap;

mlir/include/mlir/IR/Function.h

@@ -18,6 +18,7 @@
 #include "mlir/IR/FunctionSupport.h"
 #include "mlir/IR/OpDefinition.h"
 #include "mlir/IR/SymbolTable.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 //===--------------------------------------------------------------------===//

mlir/include/mlir/IR/Identifier.h

@@ -12,6 +12,7 @@
 #include "mlir/Support/LLVM.h"
 #include "llvm/ADT/DenseMapInfo.h"
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 class MLIRContext;

mlir/include/mlir/IR/Location.h

@@ -15,6 +15,7 @@
 #define MLIR_IR_LOCATION_H
 
 #include "mlir/IR/Attributes.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 

mlir/include/mlir/IR/Module.h

@@ -14,6 +14,7 @@
 #define MLIR_IR_MODULE_H
 
 #include "mlir/IR/SymbolTable.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 class ModuleTerminatorOp;

mlir/include/mlir/IR/OpDefinition.h

@@ -20,6 +20,7 @@
 #define MLIR_IR_OPDEFINITION_H
 
 #include "mlir/IR/Operation.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 #include <type_traits>
 
 namespace mlir {

mlir/include/mlir/IR/OperationSupport.h

@@ -21,6 +21,7 @@
 #include "mlir/IR/Value.h"
 #include "mlir/Support/LogicalResult.h"
 #include "llvm/ADT/PointerUnion.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 #include "llvm/Support/TrailingObjects.h"
 #include <memory>
 

mlir/include/mlir/IR/Types.h

@@ -12,6 +12,7 @@
 #include "mlir/IR/TypeSupport.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 class FloatType;

mlir/include/mlir/IR/Value.h

@@ -16,6 +16,7 @@
 #include "mlir/IR/Types.h"
 #include "mlir/IR/UseDefLists.h"
 #include "mlir/Support/LLVM.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace mlir {
 class AsmState;