Implement target cache for constructor calls.

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index 38999a8e366974a60dc0e931248924b3a23f4c1a..40cbf56879c4644dd545d0415b3aec744dc30ec9 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -2379,9 +2379,21 @@ void FullCodeGenerator::VisitCallNew(CallNew* expr) {
   __ mov(r0, Operand(arg_count));
   __ ldr(r1, MemOperand(sp, arg_count * kPointerSize));
 
-  Handle<Code> construct_builtin =
-      isolate()->builtins()->JSConstructCall();
-  __ Call(construct_builtin, RelocInfo::CONSTRUCT_CALL);
+  // Record call targets in unoptimized code, but not in the snapshot.
+  CallFunctionFlags flags;
+  if (!Serializer::enabled()) {
+    flags = RECORD_CALL_TARGET;
+    Handle<Object> uninitialized = CacheCells::UninitializedSentinel(isolate());
+    Handle<JSGlobalPropertyCell> cell =
+        isolate()->factory()->NewJSGlobalPropertyCell(uninitialized);
+    RecordCacheCell(expr->id(), cell);
+    __ mov(r2, Operand(cell));
+  } else {
+    flags = NO_CALL_FUNCTION_FLAGS;
+  }
+
+  CallConstructStub stub(flags);
+  __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
   context()->Plug(r0);
 }