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

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index 704f8de205aa4b43d1d48c5f35c236f33cf984a8..5dc894c1f75afdd73b646706d5ebbc0e324a3108 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -141,14 +141,14 @@ static void ProbeTable(Isolate* isolate,
 // the property. This function may return false negatives, so miss_label
 // must always call a backup property check that is complete.
 // This function is safe to call if the receiver has fast properties.
-// Name must be a symbol and receiver must be a heap object.
+// Name must be an internalized string and receiver must be a heap object.
 static void GenerateDictionaryNegativeLookup(MacroAssembler* masm,
                                              Label* miss_label,
                                              Register receiver,
                                              Handle<String> name,
                                              Register r0,
                                              Register r1) {
-  ASSERT(name->IsSymbol());
+  ASSERT(name->IsInternalizedString());
   Counters* counters = masm->isolate()->counters();
   __ IncrementCounter(counters->negative_lookups(), 1);
   __ IncrementCounter(counters->negative_lookups_miss(), 1);
@@ -972,8 +972,8 @@ Register StubCompiler::CheckPrototypes(Handle<JSObject> object,
     if (!current->HasFastProperties() &&
         !current->IsJSGlobalObject() &&
         !current->IsJSGlobalProxy()) {
-      if (!name->IsSymbol()) {
-        name = factory()->LookupSymbol(name);
+      if (!name->IsInternalizedString()) {
+        name = factory()->InternalizeString(name);
       }
       ASSERT(current->property_dictionary()->FindEntry(*name) ==
              StringDictionary::kNotFound);
@@ -2422,7 +2422,7 @@ Handle<Code> CallStubCompiler::CompileCallConstant(Handle<Object> object,
 
     case STRING_CHECK:
       if (function->IsBuiltin() || !function->shared()->is_classic_mode()) {
-        // Check that the object is a string or a symbol.
+        // Check that the object is a string or an internalized string.
         __ CmpObjectType(edx, FIRST_NONSTRING_TYPE, eax);
         __ j(above_equal, &miss);
         // Check that the maps starting from the prototype haven't changed.