Changed free(buffer) to delete [] buffer

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index 75e2ed19de27d39012398dad69bc9c90c9abb1bc..b3d7ec7fe3accb84e8f806676170df8173dabcc1 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -595,7 +595,7 @@ char* String::ToAsciiArray() {
   // Static so that subsequent calls frees previously allocated space.
   // This also means that previous results will be overwritten.
   static char* buffer = NULL;
-  if (buffer != NULL) free(buffer);
+  if (buffer != NULL) delete [] buffer;
   buffer = new char[length()+1];
   WriteToFlat(this, reinterpret_cast<uint8_t*>(buffer), 0, length());
   buffer[length()] = 0;