Cleanup of return types and names in factory.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index f654b5aa83b4cec5967879ab60f390da47254236..405cebe45fa9aed5ec3c7d386d6f33ac54531fd5 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -179,21 +179,21 @@ Handle<String> Factory::NewStringFromTwoByte(Vector<const uc16> string,
 }
 
 
-Handle<String> Factory::NewRawAsciiString(int length,
-                                          PretenureFlag pretenure) {
+Handle<SeqAsciiString> Factory::NewRawAsciiString(int length,
+                                                  PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateRawAsciiString(length, pretenure),
-      String);
+      SeqAsciiString);
 }
 
 
-Handle<String> Factory::NewRawTwoByteString(int length,
-                                            PretenureFlag pretenure) {
+Handle<SeqTwoByteString> Factory::NewRawTwoByteString(int length,
+                                                      PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateRawTwoByteString(length, pretenure),
-      String);
+      SeqTwoByteString);
 }
 
 
@@ -214,7 +214,7 @@ Handle<String> Factory::NewSubString(Handle<String> str,
 }
 
 
-Handle<String> Factory::NewStrictSubString(Handle<String> str,
+Handle<String> Factory::NewProperSubString(Handle<String> str,
                                            int begin,
                                            int end) {
   ASSERT(begin > 0 || end < str->length());