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

src/x64/ic-x64.cc

Index: src/x64/ic-x64.cc
diff --git a/src/x64/ic-x64.cc b/src/x64/ic-x64.cc
index 39114387300a643c34191b4b38cf4ae7d6b75f32..02302a9dd32e394f2599e89e51ea65a31b08ab8a 100644
--- a/src/x64/ic-x64.cc
+++ b/src/x64/ic-x64.cc
@@ -101,8 +101,8 @@ static void GenerateStringDictionaryReceiverCheck(MacroAssembler* masm,
 // Helper function used to load a property from a dictionary backing storage.
 // This function may return false negatives, so miss_label
 // must always call a backup property load that is complete.
-// This function is safe to call if name is not a symbol, and will jump to
-// the miss_label in that case.
+// This function is safe to call if name is not an internalized string,
+// and will jump to the miss_label in that case.
 // The generated code assumes that the receiver has slow properties,
 // is not a global object and does not have interceptors.
 static void GenerateDictionaryLoad(MacroAssembler* masm,
@@ -160,8 +160,8 @@ static void GenerateDictionaryLoad(MacroAssembler* masm,
 // storage. This function may fail to store a property even though it
 // is in the dictionary, so code at miss_label must always call a
 // backup property store that is complete. This function is safe to
-// call if name is not a symbol, and will jump to the miss_label in
-// that case. The generated code assumes that the receiver has slow
+// call if name is not an internalized string, and will jump to the miss_label
+// in that case. The generated code assumes that the receiver has slow
 // properties, is not a global object and does not have interceptors.
 static void GenerateDictionaryStore(MacroAssembler* masm,
                                     Label* miss_label,
@@ -313,31 +313,31 @@ static void GenerateFastArrayLoad(MacroAssembler* masm,
 }
 
 
-// Checks whether a key is an array index string or a symbol string.
-// Falls through if the key is a symbol.
+// Checks whether a key is an array index string or an internalized string.
+// Falls through if the key is an internalized string.
 static void GenerateKeyStringCheck(MacroAssembler* masm,
                                    Register key,
                                    Register map,
                                    Register hash,
                                    Label* index_string,
-                                   Label* not_symbol) {
+                                   Label* not_internalized) {
   // Register use:
   //   key - holds the key and is unchanged. Assumed to be non-smi.
   // Scratch registers:
   //   map - used to hold the map of the key.
   //   hash - used to hold the hash of the key.
   __ CmpObjectType(key, FIRST_NONSTRING_TYPE, map);
-  __ j(above_equal, not_symbol);
+  __ j(above_equal, not_internalized);
   // Is the string an array index, with cached numeric value?
   __ movl(hash, FieldOperand(key, String::kHashFieldOffset));
   __ testl(hash, Immediate(String::kContainsCachedArrayIndexMask));
   __ j(zero, index_string);  // The value in hash is used at jump target.
 
-  // Is the string a symbol?
-  STATIC_ASSERT(kSymbolTag != 0);
+  // Is the string internalized?
+  STATIC_ASSERT(kInternalizedTag != 0);
   __ testb(FieldOperand(map, Map::kInstanceTypeOffset),
-           Immediate(kIsSymbolMask));
-  __ j(zero, not_symbol);
+           Immediate(kIsInternalizedMask));
+  __ j(zero, not_internalized);
 }
 
 
@@ -421,7 +421,7 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
   int mask = (KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask);
   __ and_(rcx, Immediate(mask));
 
-  // Load the key (consisting of map and symbol) from the cache and
+  // Load the key (consisting of map and internalized string) from the cache and
   // check for match.
   Label load_in_object_property;
   static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket;
@@ -1075,7 +1075,7 @@ void KeyedCallIC::GenerateMegamorphic(MacroAssembler* masm, int argc) {
   __ bind(&check_string);
   GenerateKeyStringCheck(masm, rcx, rax, rbx, &index_string, &slow_call);
 
-  // The key is known to be a symbol.
+  // The key is known to be an internalized string.
   // If the receiver is a regular JS object with slow properties then do
   // a quick inline probe of the receiver's dictionary.
   // Otherwise do the monomorphic cache probe.
@@ -1102,7 +1102,7 @@ void KeyedCallIC::GenerateMegamorphic(MacroAssembler* masm, int argc) {
   __ bind(&slow_call);
   // This branch is taken if:
   // - the receiver requires boxing or access check,
-  // - the key is neither smi nor symbol,
+  // - the key is neither smi nor internalized string,
   // - the value loaded is not a function,
   // - there is hope that the runtime will create a monomorphic call stub
   //   that will get fetched next time.