Implement crankshaft support for pixel array loads.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index e62162204bd7c6a072d67ab7c0e123c5474a9fd4..eb1c5927d28426fa127c1c4c543dc6cde5a5aac0 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1235,6 +1235,14 @@ void HLoadKeyed::PrintDataTo(StringStream* stream) const {
 }
 
 
+void HLoadPixelArrayElement::PrintDataTo(StringStream* stream) const {
+  external_pointer()->PrintNameTo(stream);
+  stream->Add("[");
+  key()->PrintNameTo(stream);
+  stream->Add("]");
+}
+
+
 void HStoreNamed::PrintDataTo(StringStream* stream) const {
   object()->PrintNameTo(stream);
   stream->Add(".");