Reland r13275 and 13276 (Remove most uses of StringInputBuffer).

src/string-stream.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 293 matching lines @@
 }
 #endif
 
 
 bool StringStream::Put(String* str) {
   return Put(str, 0, str->length());
 }
 
 
 bool StringStream::Put(String* str, int start, int end) {
-  StringInputBuffer name_buffer(str);
-  name_buffer.Seek(start);
-  for (int i = start; i < end && name_buffer.has_more(); i++) {
-    int c = name_buffer.GetNext();
+  ConsStringIteratorOp op;
+  StringCharacterStream stream(str, &op, start);
+  for (int i = start; i < end && stream.HasMore(); i++) {
+    uint16_t c = stream.GetNext();
     if (c >= 127 || c < 32) {
       c = '?';
     }
-    if (!Put(c)) {
+    if (!Put(static_cast<char>(c))) {
       return false;  // Output was truncated.
     }
   }
   return true;
 }
 
 
 void StringStream::PrintName(Object* name) {
   if (name->IsString()) {
     String* str = String::cast(name);
@@ skipping 251 matching lines @@
 
 // Only grow once to the maximum allowable size.
 char* NoAllocationStringAllocator::grow(unsigned* bytes) {
   ASSERT(size_ >= *bytes);
   *bytes = size_;
   return space_;
 }
 
 
 } }  // namespace v8::internal