Remove inline header includes from natives.h header.

src/snapshot/natives-external.cc

 // Copyright 2014 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.
 
 #include "src/snapshot/natives.h"
 
 #include "src/base/logging.h"
 #include "src/list.h"
 #include "src/list-inl.h"
 #include "src/snapshot/snapshot-source-sink.h"
@@ skipping 211 matching lines @@
 Vector<const char> NativesCollection<type>::GetScriptName(int index) {
   return NativesHolder<type>::get()->GetScriptName(index);
 }
 
 template <NativeType type>
 Vector<const char> NativesCollection<type>::GetScriptsSource() {
   return NativesHolder<type>::get()->GetScriptsSource();
 }
 
 
-// The compiler can't 'see' all uses of the static methods and hence
-// my choice to elide them. This we'll explicitly instantiate these.
-template class NativesCollection<CORE>;
-template class NativesCollection<CODE_STUB>;
-template class NativesCollection<EXPERIMENTAL>;
-template class NativesCollection<EXTRAS>;
+// Explicit template instantiations.
+#define INSTANTIATE_TEMPLATES(T)                                            \
+  template int NativesCollection<T>::GetBuiltinsCount();                    \
+  template int NativesCollection<T>::GetDebuggerCount();                    \
+  template int NativesCollection<T>::GetIndex(const char* name);            \
+  template Vector<const char> NativesCollection<T>::GetScriptSource(int i); \
+  template Vector<const char> NativesCollection<T>::GetScriptName(int i);   \
+  template Vector<const char> NativesCollection<T>::GetScriptsSource();
+INSTANTIATE_TEMPLATES(CORE)
+INSTANTIATE_TEMPLATES(CODE_STUB)
+INSTANTIATE_TEMPLATES(EXPERIMENTAL)
+INSTANTIATE_TEMPLATES(EXTRAS)
+#undef INSTANTIATE_TEMPLATES
+
 }  // namespace internal
 }  // namespace v8