MIPS: Implement inlined object allocation in Crankshaft.

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 b18a85f3d9f25470ffa880125aca11ae17856c78..9ec1c1b8a7877ca6a13ec17ac0392980c287ae43 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -2126,7 +2126,8 @@ LInstruction* LChunkBuilder::DoStringLength(HStringLength* instr) {
 
 
 LInstruction* LChunkBuilder::DoAllocateObject(HAllocateObject* instr) {
-  LAllocateObject* result = new(zone()) LAllocateObject();
+  LAllocateObject* result = new(zone()) LAllocateObject(
+      TempRegister(), TempRegister());
   return AssignPointerMap(DefineAsRegister(result));
 }