Revert r40306 because of crash.

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/dart_entry.h"
@@ skipping 5870 matching lines @@
   // Function in RAX.
   ASSERT(locs()->in(0).reg() == RAX);
   __ movq(RCX, FieldAddress(RAX, Function::instructions_offset()));
 
   // RAX: Function.
   // R10: Arguments descriptor array.
   // RBX: Smi 0 (no IC data; the lazy-compile stub expects a GC-safe value).
   __ xorq(RBX, RBX);
   __ addq(RCX, Immediate(Instructions::HeaderSize() - kHeapObjectTag));
   __ call(RCX);
-  compiler->RecordCallInfo(token_pos(),
-                           RawPcDescriptors::kClosureCall,
-                           deopt_id(),
-                           locs(),
-                           locs()->input_count());
+  compiler->AddCurrentDescriptor(RawPcDescriptors::kClosureCall,
+                                 deopt_id(),
+                                 token_pos());
+  compiler->RecordSafepoint(locs());
+  // Marks either the continuation point in unoptimized code or the
+  // deoptimization point in optimized code, after call.
+  const intptr_t deopt_id_after = Isolate::ToDeoptAfter(deopt_id());
+  if (compiler->is_optimizing()) {
+    compiler->AddDeoptIndexAtCall(deopt_id_after, token_pos());
+  } else {
+    // Add deoptimization continuation point after the call and before the
+    // arguments are removed.
+    compiler->AddCurrentDescriptor(RawPcDescriptors::kDeopt,
+                                   deopt_id_after,
+                                   token_pos());
+  }
   __ Drop(argument_count);
 }
 
 
 LocationSummary* BooleanNegateInstr::MakeLocationSummary(Isolate* isolate,
                                                          bool opt) const {
   return LocationSummary::Make(isolate,
                                1,
                                Location::RequiresRegister(),
                                LocationSummary::kNoCall);
@@ skipping 42 matching lines @@
   __ movq(R10, Immediate(kInvalidObjectPointer));
   __ movq(RBX, Immediate(kInvalidObjectPointer));
 #endif
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64