Make some foo.h headers usable without foo-inl.h header.

src/heap/heap.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_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 2611 matching lines @@
 
 
 // Cache for mapping (map, property name) into descriptor index.
 // The cache contains both positive and negative results.
 // Descriptor index equals kNotFound means the property is absent.
 // Cleared at startup and prior to any gc.
 class DescriptorLookupCache {
  public:
   // Lookup descriptor index for (map, name).
   // If absent, kAbsent is returned.
-  int Lookup(Map* source, Name* name) {
-    if (!name->IsUniqueName()) return kAbsent;
-    int index = Hash(source, name);
-    Key& key = keys_[index];
-    if ((key.source == source) && (key.name == name)) return results_[index];
-    return kAbsent;
-  }
+  inline int Lookup(Map* source, Name* name);
 
   // Update an element in the cache.
-  void Update(Map* source, Name* name, int result) {
-    DCHECK(result != kAbsent);
-    if (name->IsUniqueName()) {
-      int index = Hash(source, name);
-      Key& key = keys_[index];
-      key.source = source;
-      key.name = name;
-      results_[index] = result;
-    }
-  }
+  inline void Update(Map* source, Name* name, int result);
 
   // Clear the cache.
   void Clear();
 
   static const int kAbsent = -2;
 
  private:
   DescriptorLookupCache() {
     for (int i = 0; i < kLength; ++i) {
       keys_[i].source = NULL;
@@ skipping 117 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_H_