VM: Fix frame size computation for optimized DBC code

runtime/vm/intermediate_language_dbc.cc

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_DBC.
 #if defined(TARGET_ARCH_DBC)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/cpu.h"
@@ skipping 165 matching lines @@
 
 #undef DEFINE_UNIMPLEMENTED
 
 DEFINE_UNIMPLEMENTED_EMIT_BRANCH_CODE(TestCids)
 DEFINE_UNIMPLEMENTED_EMIT_BRANCH_CODE(TestSmi)
 DEFINE_UNIMPLEMENTED_EMIT_BRANCH_CODE(RelationalOp)
 DEFINE_UNIMPLEMENTED_EMIT_BRANCH_CODE(EqualityCompare)
 
 
 DEFINE_MAKE_LOCATION_SUMMARY(AssertAssignable, 2,
-                             Location::RequiresRegister(),
+                             Location::SameAsFirstInput(),
                              LocationSummary::kCall);
 
 
 EMIT_NATIVE_CODE(AssertBoolean,
                  1, Location::SameAsFirstInput(),
                  LocationSummary::kCall) {
   if (compiler->is_optimizing()) {
     __ Push(locs()->in(0).reg());
   }
   __ AssertBoolean(Isolate::Current()->type_checks() ? 1 : 0);
@@ skipping 778 matching lines @@
   if (can_deopt) {
     compiler->EmitDeopt(deopt_id(), ICData::kDeoptBinarySmiOp);
   } else if (needs_nop) {
     __ Nop();
   }
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_DBC