AllocationProfiler: Inital version of RecordObjectAllocation for hydrogen.

src/arm/lithium-arm.h

Index: src/arm/lithium-arm.h
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index 6c036c7b5dd3204b1250736e4c5e770c699053d4..b30f7086c8822b9f9a40a9ebda871d7b5b7e1c12 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -62,6 +62,7 @@ class LCodeGen;
   V(CallNewArray)                               \
   V(CallRuntime)                                \
   V(CallStub)                                   \
+  V(CallExternal)                               \
   V(CheckInstanceType)                          \
   V(CheckNonSmi)                                \
   V(CheckMaps)                                  \
@@ -488,6 +489,19 @@ class LCallStub V8_FINAL : public LTemplateInstruction<1, 1, 0> {
 };
 
 
+class LCallExternal V8_FINAL : public LTemplateInstruction<0, 2, 0> {
+ public:
+  LCallExternal() { }
+  DECLARE_CONCRETE_INSTRUCTION(CallExternal, "call-external")
+  DECLARE_HYDROGEN_ACCESSOR(CallExternal)
+
+  int arity() const { return hydrogen()->argument_count(); }
+  ExternalReference external_reference() const {
+    return hydrogen()->external_reference();
+  }
+};
+
+
 class LUnknownOSRValue V8_FINAL : public LTemplateInstruction<1, 0, 0> {
  public:
   virtual bool HasInterestingComment(LCodeGen* gen) const V8_OVERRIDE {