Implement inlining of constructor calls.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 8fa754d361ed6ab40e46d6e65f09d01a47f2251a..9d80fafd88dea322543a84730be32f723940ec48 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -43,6 +43,7 @@ class LCodeGen;
 #define LITHIUM_CONCRETE_INSTRUCTION_LIST(V)    \
   V(AccessArgumentsAt)                          \
   V(AddI)                                       \
+  V(AllocateObject)                             \
   V(ApplyArguments)                             \
   V(ArgumentsElements)                          \
   V(ArgumentsLength)                            \
@@ -1979,6 +1980,19 @@ class LCheckNonSmi: public LTemplateInstruction<0, 1, 0> {
 };
 
 
+class LAllocateObject: public LTemplateInstruction<1, 1, 0> {
+ public:
+  LAllocateObject(LOperand* context) {
+    inputs_[0] = context;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(AllocateObject, "allocate-object")
+  DECLARE_HYDROGEN_ACCESSOR(AllocateObject)
+
+  LOperand* context() { return inputs_[0]; }
+};
+
+
 class LArrayLiteral: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LArrayLiteral(LOperand* context) {