Fix some defects identifies by Coverity Prevent. All are false...

src/hashmap.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 176 matching lines @@
     }
   }
 
   return p;
 }
 
 
 void HashMap::Initialize(uint32_t capacity) {
   ASSERT(IsPowerOf2(capacity));
   map_ = reinterpret_cast<Entry*>(allocator_->New(capacity * sizeof(Entry)));
-  if (map_ == NULL) V8::FatalProcessOutOfMemory("HashMap::Initialize");
+  if (map_ == NULL) {
+    V8::FatalProcessOutOfMemory("HashMap::Initialize");
+    return;
+  }
   capacity_ = capacity;
   Clear();
 }
 
 
 void HashMap::Resize() {
   Entry* map = map_;
   uint32_t n = occupancy_;
 
   // Allocate larger map.
   Initialize(capacity_ * 2);
 
   // Rehash all current entries.
   for (Entry* p = map; n > 0; p++) {
     if (p->key != NULL) {
       Lookup(p->key, p->hash, true)->value = p->value;
       n--;
     }
   }
 
   // Delete old map.
   allocator_->Delete(map);
 }
 
 
 } }  // namespace v8::internal