Renamed "symbols" to "internalized strings" throughout the code base,

src/runtime.h

Index: src/runtime.h
diff --git a/src/runtime.h b/src/runtime.h
index 2625c69413678c6d3b2efd279a97894c506f84f3..571f893b3284cbd2c22ea1ee306ae396efcef080 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -642,15 +642,16 @@ class Runtime : public AllStatic {
 
   static const int kNotFound = -1;
 
-  // Add symbols for all the intrinsic function names to a StringDictionary.
+  // Add internalized strings for all the intrinsic function names to a
+  // StringDictionary.
   // Returns failure if an allocation fails.  In this case, it must be
   // retried with a new, empty StringDictionary, not with the same one.
   // Alternatively, heap initialization can be completely restarted.
   MUST_USE_RESULT static MaybeObject* InitializeIntrinsicFunctionNames(
       Heap* heap, Object* dictionary);
 
-  // Get the intrinsic function with the given name, which must be a symbol.
-  static const Function* FunctionForSymbol(Handle<String> name);
+  // Get the intrinsic function with the given name, which must be internalized.
+  static const Function* FunctionForName(Handle<String> name);
 
   // Get the intrinsic function with the given FunctionId.
   static const Function* FunctionForId(FunctionId id);