Revert "Revert "Pass current method to HNewInstance and HNewArray.""

Problem exposed by this change was fixed in:
https://android-review.googlesource.com/#/c/154031/

This reverts commit 7b0e353b49ac3f464c662f20e20e240f0231afff.

Change-Id: I680c13dc9db9ba223ab11c7af255222860b4e6d2
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 6168c20..3d3e35d 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -1260,11 +1260,6 @@
   HandleInvoke(invoke);
 }
 
-void CodeGeneratorARM::LoadCurrentMethod(Register reg) {
-  DCHECK(RequiresCurrentMethod());
-  __ LoadFromOffset(kLoadWord, reg, SP, kCurrentMethodStackOffset);
-}
-
 static bool TryGenerateIntrinsicCode(HInvoke* invoke, CodeGeneratorARM* codegen) {
   if (invoke->GetLocations()->Intrinsified()) {
     IntrinsicCodeGeneratorARM intrinsic(codegen);
@@ -2706,13 +2701,12 @@
       new (GetGraph()->GetArena()) LocationSummary(instruction, LocationSummary::kCall);
   InvokeRuntimeCallingConvention calling_convention;
   locations->AddTemp(Location::RegisterLocation(calling_convention.GetRegisterAt(0)));
-  locations->AddTemp(Location::RegisterLocation(calling_convention.GetRegisterAt(1)));
+  locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(1)));
   locations->SetOut(Location::RegisterLocation(R0));
 }
 
 void InstructionCodeGeneratorARM::VisitNewInstance(HNewInstance* instruction) {
   InvokeRuntimeCallingConvention calling_convention;
-  codegen_->LoadCurrentMethod(calling_convention.GetRegisterAt(1));
   __ LoadImmediate(calling_convention.GetRegisterAt(0), instruction->GetTypeIndex());
   codegen_->InvokeRuntime(GetThreadOffset<kArmWordSize>(instruction->GetEntrypoint()).Int32Value(),
                           instruction,
@@ -2725,14 +2719,13 @@
       new (GetGraph()->GetArena()) LocationSummary(instruction, LocationSummary::kCall);
   InvokeRuntimeCallingConvention calling_convention;
   locations->AddTemp(Location::RegisterLocation(calling_convention.GetRegisterAt(0)));
-  locations->AddTemp(Location::RegisterLocation(calling_convention.GetRegisterAt(2)));
   locations->SetOut(Location::RegisterLocation(R0));
   locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(1)));
+  locations->SetInAt(1, Location::RegisterLocation(calling_convention.GetRegisterAt(2)));
 }
 
 void InstructionCodeGeneratorARM::VisitNewArray(HNewArray* instruction) {
   InvokeRuntimeCallingConvention calling_convention;
-  codegen_->LoadCurrentMethod(calling_convention.GetRegisterAt(2));
   __ LoadImmediate(calling_convention.GetRegisterAt(0), instruction->GetTypeIndex());
   codegen_->InvokeRuntime(GetThreadOffset<kArmWordSize>(instruction->GetEntrypoint()).Int32Value(),
                           instruction,