Revert "VM: Simplify lowering of is-tests."

runtime/vm/intermediate_language_x64.cc

 // Copyright (c) 2013, 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_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/compiler.h"
@@ skipping 2027 matching lines @@
   summary->set_in(1, Location::RegisterLocation(RDX));
   summary->set_out(0, Location::RegisterLocation(RAX));
   return summary;
 }
 
 
 void InstanceOfInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   ASSERT(locs()->in(0).reg() == RAX);  // Value.
   ASSERT(locs()->in(1).reg() == RDX);  // Instantiator type arguments.
 
-  compiler->GenerateInstanceOf(token_pos(), deopt_id(), type(), locs());
+  compiler->GenerateInstanceOf(token_pos(), deopt_id(), type(), negate_result(),
+                               locs());
   ASSERT(locs()->out(0).reg() == RAX);
 }
 
 
 // TODO(srdjan): In case of constant inputs make CreateArray kNoCall and
 // use slow path stub.
 LocationSummary* CreateArrayInstr::MakeLocationSummary(Zone* zone,
                                                        bool opt) const {
   const intptr_t kNumInputs = 2;
   const intptr_t kNumTemps = 0;
@@ skipping 4704 matching lines @@
   __ Drop(1);
   __ popq(result);
 }
 
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64