Do not use new struct type where unnecessary.

src/compiler/types.cc

Index: src/compiler/types.cc
diff --git a/src/compiler/types.cc b/src/compiler/types.cc
index e0de4ef97aad5c5874711fb0f63969cab041f5c9..1f52415d65389e7947bde89694d33562d362d11a 100644
--- a/src/compiler/types.cc
+++ b/src/compiler/types.cc
@@ -311,15 +311,12 @@ Type::bitset BitsetType::Lub(i::Map* map) {
     case FILLER_TYPE:
     case ACCESS_CHECK_INFO_TYPE:
     case INTERCEPTOR_INFO_TYPE:
-    case CALL_HANDLER_INFO_TYPE:
     case OBJECT_TEMPLATE_INFO_TYPE:
     case ALLOCATION_MEMENTO_TYPE:
-    case TYPE_FEEDBACK_INFO_TYPE:
     case ALIASED_ARGUMENTS_ENTRY_TYPE:
     case PROMISE_RESOLVE_THENABLE_JOB_INFO_TYPE:
     case PROMISE_REACTION_JOB_INFO_TYPE:
     case DEBUG_INFO_TYPE:
-    case BREAK_POINT_INFO_TYPE:
     case STACK_FRAME_INFO_TYPE:
     case CELL_TYPE:
     case WEAK_CELL_TYPE:
@@ -327,8 +324,11 @@ Type::bitset BitsetType::Lub(i::Map* map) {
     case TUPLE2_TYPE:
     case TUPLE3_TYPE:
     case CONTEXT_EXTENSION_TYPE:
-    case CONSTANT_ELEMENTS_PAIR_TYPE:
     case ASYNC_GENERATOR_REQUEST_TYPE:
+    case PADDING_TYPE_1:
+    case PADDING_TYPE_2:
+    case PADDING_TYPE_3:
+    case PADDING_TYPE_4:
       UNREACHABLE();
       return kNone;
   }