[turbofan] Make MachineType a pair of enums.

src/compiler/code-stub-assembler.cc

Index: src/compiler/code-stub-assembler.cc
diff --git a/src/compiler/code-stub-assembler.cc b/src/compiler/code-stub-assembler.cc
index f7d59928095d19b2e9e4a8f68562170bf85d03ae..b2a05b64f86074bd877ece99deb15c815f33f82b 100644
--- a/src/compiler/code-stub-assembler.cc
+++ b/src/compiler/code-stub-assembler.cc
@@ -119,7 +119,7 @@ Node* CodeStubAssembler::WordShl(Node* value, int shift) {
 
 
 Node* CodeStubAssembler::LoadObjectField(Node* object, int offset) {
-  return raw_assembler_->Load(kMachAnyTagged, object,
+  return raw_assembler_->Load(MachineType::AnyTagged(), object,
                               IntPtrConstant(offset - kHeapObjectTag));
 }