[turbofan] Make MachineType a pair of enums.

test/unittests/compiler/linkage-tail-call-unittest.cc

Index: test/unittests/compiler/linkage-tail-call-unittest.cc
diff --git a/test/unittests/compiler/linkage-tail-call-unittest.cc b/test/unittests/compiler/linkage-tail-call-unittest.cc
index 255c8a1150f63a13cb2e91c32215632733ee7f75..597edde6653cf3282a13bf426b7d0ca1ed29df5e 100644
--- a/test/unittests/compiler/linkage-tail-call-unittest.cc
+++ b/test/unittests/compiler/linkage-tail-call-unittest.cc
@@ -14,9 +14,11 @@ namespace compiler {
 
 namespace {
 
-MachineType kMachineTypes[] = {kMachAnyTagged, kMachAnyTagged, kMachAnyTagged,
-                               kMachAnyTagged, kMachAnyTagged, kMachAnyTagged,
-                               kMachAnyTagged, kMachAnyTagged};
+MachineType kMachineTypes[] = {
+    MachineType::AnyTagged(), MachineType::AnyTagged(),
+    MachineType::AnyTagged(), MachineType::AnyTagged(),
+    MachineType::AnyTagged(), MachineType::AnyTagged(),
+    MachineType::AnyTagged(), MachineType::AnyTagged()};
 }
 
 class LinkageTailCall : public TestWithZone {
@@ -26,17 +28,17 @@ class LinkageTailCall : public TestWithZone {
            locations->return_count() + locations->parameter_count());
     MachineSignature* types = new (zone()) MachineSignature(
         locations->return_count(), locations->parameter_count(), kMachineTypes);
-    return new (zone())
-        CallDescriptor(CallDescriptor::kCallCodeObject, kMachAnyTagged,
-                       LinkageLocation::ForAnyRegister(),
-                       types,                     // machine_sig
-                       locations,                 // location_sig
-                       0,                         // js_parameter_count
-                       Operator::kNoProperties,   // properties
-                       0,                         // callee-saved
-                       0,                         // callee-saved fp
-                       CallDescriptor::kNoFlags,  // flags,
-                       "");
+    return new (zone()) CallDescriptor(CallDescriptor::kCallCodeObject,
+                                       MachineType::AnyTagged(),
+                                       LinkageLocation::ForAnyRegister(),
+                                       types,      // machine_sig
+                                       locations,  // location_sig
+                                       0,          // js_parameter_count
+                                       Operator::kNoProperties,  // properties
+                                       0,                        // callee-saved
+                                       0,  // callee-saved fp
+                                       CallDescriptor::kNoFlags,  // flags,
+                                       "");
   }
 
   LinkageLocation StackLocation(int loc) {