Remove dependency on Vector from platform files

test/cctest/test-utils.cc

 // Copyright 2011 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 65 matching lines @@
 
 TEST(SNPrintF) {
   // Make sure that strings that are truncated because of too small
   // buffers are zero-terminated anyway.
   const char* s = "the quick lazy .... oh forget it!";
   int length = StrLength(s);
   for (int i = 1; i < length * 2; i++) {
     static const char kMarker = static_cast<char>(42);
     Vector<char> buffer = Vector<char>::New(i + 1);
     buffer[i] = kMarker;
-    int n = OS::SNPrintF(Vector<char>(buffer.start(), i), "%s", s);
+    int n = SNPrintF(Vector<char>(buffer.start(), i), "%s", s);
     CHECK(n <= i);
     CHECK(n == length || n == -1);
     CHECK_EQ(0, strncmp(buffer.start(), s, i - 1));
     CHECK_EQ(kMarker, buffer[i]);
     if (i <= length) {
       CHECK_EQ(i - 1, StrLength(buffer.start()));
     } else {
       CHECK_EQ(length, StrLength(buffer.start()));
     }
     buffer.Dispose();
@@ skipping 114 matching lines @@
 TEST(SequenceCollectorRegression) {
   SequenceCollector<char> collector(16);
   collector.StartSequence();
   collector.Add('0');
   collector.AddBlock(
       i::Vector<const char>("12345678901234567890123456789012", 32));
   i::Vector<char> seq = collector.EndSequence();
   CHECK_EQ(0, strncmp("0123456789012345678901234567890123",
                       seq.start(), seq.length()));
 }