Replace OS::MemCopy with OS::MemMove (just as fast but more flexible).

test/cctest/test-parsing.cc

Index: test/cctest/test-parsing.cc
diff --git a/test/cctest/test-parsing.cc b/test/cctest/test-parsing.cc
index 610b8ceb60406d733ff170c99cbb041f09c4ab13..c7331bdb91b33bb5af60316343331b629d7547f5 100644
--- a/test/cctest/test-parsing.cc
+++ b/test/cctest/test-parsing.cc
@@ -83,7 +83,7 @@ TEST(ScanKeywords) {
     // Adding characters will make keyword matching fail.
     static const char chars_to_append[] = { 'z', '0', '_' };
     for (int j = 0; j < static_cast<int>(ARRAY_SIZE(chars_to_append)); ++j) {
-      memmove(buffer, keyword, length);
+      i::OS::MemMove(buffer, keyword, length);
       buffer[length] = chars_to_append[j];
       i::Utf8ToUtf16CharacterStream stream(buffer, length + 1);
       i::Scanner scanner(&unicode_cache);
@@ -93,7 +93,7 @@ TEST(ScanKeywords) {
     }
     // Replacing characters will make keyword matching fail.
     {
-      memmove(buffer, keyword, length);
+      i::OS::MemMove(buffer, keyword, length);
       buffer[length - 1] = '_';
       i::Utf8ToUtf16CharacterStream stream(buffer, length);
       i::Scanner scanner(&unicode_cache);