Emit source positions in deopt comments, too.

src/arm64/lithium-codegen-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/arm64/lithium-codegen-arm64.h"
 #include "src/arm64/lithium-gap-resolver-arm64.h"
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 1026 matching lines @@
     __ Pop(x2, x1, x0);
   }
 
   if (info()->ShouldTrapOnDeopt()) {
     Label dont_trap;
     __ B(&dont_trap, InvertBranchType(branch_type), reg, bit);
     __ Debug("trap_on_deopt", __LINE__, BREAK);
     __ Bind(&dont_trap);
   }
 
-  Deoptimizer::Reason reason(instr->Mnemonic(), detail);
+  Deoptimizer::Reason reason(instr->hydrogen_value()->position().raw(),
+                             instr->Mnemonic(), detail);
   DCHECK(info()->IsStub() || frame_is_built_);
   // Go through jump table if we need to build frame, or restore caller doubles.
   if (branch_type == always &&
       frame_is_built_ && !info()->saves_caller_doubles()) {
     DeoptComment(reason);
     __ Call(entry, RelocInfo::RUNTIME_ENTRY);
   } else {
     // We often have several deopts to the same entry, reuse the last
     // jump entry if this is the case.
     if (jump_table_.is_empty() || (jump_table_.last()->address != entry) ||
@@ skipping 4980 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 
 } }  // namespace v8::internal