AllocationProfiler: Inital version of RecordObjectAllocation for hydrogen.

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index fb94bc3bdf24a7639d241603207ba2a5fdf1a5ca..bb83b94afbe3c47b48d02a88a63e66e0faeaad5d 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -2427,6 +2427,11 @@ LInstruction* LChunkBuilder::DoCallStub(HCallStub* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoCallExternal(HCallExternal* instr) {
+  return MarkAsCall(new(zone()) LCallExternal(), instr);
+}
+
+
 LInstruction* LChunkBuilder::DoArgumentsObject(HArgumentsObject* instr) {
   // There are no real uses of the arguments object.
   // arguments.length and element access are supported directly on