[heap] StaticNewSpaceVisitor: Add UNREACHABLE handlers for pre-tenured types

src/heap/objects-visiting.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "src/allocation.h"
 #include "src/heap/heap.h"
 #include "src/heap/spaces.h"
@@ skipping 249 matching lines @@
   INLINE(static void VisitPointers(Heap* heap, HeapObject* object,
                                    Object** start, Object** end)) {
     for (Object** p = start; p < end; p++) {
       StaticVisitor::VisitPointer(heap, object, p);
     }
   }
 
   // Although we are using the JSFunction body descriptor which does not
   // visit the code entry, compiler wants it to be accessible.
   // See JSFunction::BodyDescriptorImpl.
-  INLINE(static void VisitCodeEntry(Heap* heap, HeapObject* object,
-                                    Address entry_address)) {
+  inline static void VisitCodeEntry(Heap* heap, HeapObject* object,
+                                    Address entry_address) {
     UNREACHABLE();
   }
 
  private:
+  inline static int UnreachableVisitor(Map* map, HeapObject* object) {
+    UNREACHABLE();
+    return 0;
+  }
+
   INLINE(static int VisitByteArray(Map* map, HeapObject* object)) {
     return reinterpret_cast<ByteArray*>(object)->ByteArraySize();
   }
 
   INLINE(static int VisitFixedDoubleArray(Map* map, HeapObject* object)) {
     int length = reinterpret_cast<FixedDoubleArray*>(object)->length();
     return FixedDoubleArray::SizeFor(length);
   }
 
   INLINE(static int VisitJSObject(Map* map, HeapObject* object)) {
     return JSObjectVisitor::Visit(map, object);
   }
 
   INLINE(static int VisitSeqOneByteString(Map* map, HeapObject* object)) {
     return SeqOneByteString::cast(object)
         ->SeqOneByteStringSize(map->instance_type());
   }
 
   INLINE(static int VisitSeqTwoByteString(Map* map, HeapObject* object)) {
     return SeqTwoByteString::cast(object)
         ->SeqTwoByteStringSize(map->instance_type());
   }
 
   INLINE(static int VisitFreeSpace(Map* map, HeapObject* object)) {
     return FreeSpace::cast(object)->size();
   }
 
-  INLINE(static int VisitBytecodeArray(Map* map, HeapObject* object));
-
   class DataObjectVisitor {
    public:
     template <int object_size>
     static inline int VisitSpecialized(Map* map, HeapObject* object) {
       return object_size;
     }
 
     INLINE(static int Visit(Map* map, HeapObject* object)) {
       return map->instance_size();
     }
@@ skipping 133 matching lines @@
 // the next element. Given the head of the list, this function removes dead
 // elements from the list and if requested records slots for next-element
 // pointers. The template parameter T is a WeakListVisitor that defines how to
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap, Object* list, WeakObjectRetainer* retainer);
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_VISITING_H_