[crankshaft] Move is_tracking_positions predicate.

src/compilation-info.h

 // Copyright 2016 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.
 
 #ifndef V8_COMPILATION_INFO_H_
 #define V8_COMPILATION_INFO_H_
 
 #include <memory>
 
 #include "src/compilation-dependencies.h"
@@ skipping 74 matching lines @@
   bool is_this_defined() const;
 
   void set_parameter_count(int parameter_count) {
     DCHECK(IsStub());
     parameter_count_ = parameter_count;
   }
 
   bool has_bytecode_array() const { return !bytecode_array_.is_null(); }
   Handle<BytecodeArray> bytecode_array() const { return bytecode_array_; }
 
-  bool is_tracking_positions() const { return track_positions_; }
-
   bool is_calling() const {
     return GetFlag(kDeferredCalling) || GetFlag(kNonDeferredCalling);
   }
 
   void MarkAsDeferredCalling() { SetFlag(kDeferredCalling); }
 
   bool is_deferred_calling() const { return GetFlag(kDeferredCalling); }
 
   void MarkAsNonDeferredCalling() { SetFlag(kNonDeferredCalling); }
 
@@ skipping 265 matching lines @@
 
   DeferredHandles* deferred_handles_;
 
   // Dependencies for this compilation, e.g. stable maps.
   CompilationDependencies dependencies_;
 
   BailoutReason bailout_reason_;
 
   int prologue_offset_;
 
-  bool track_positions_;
-
   InlinedFunctionList inlined_functions_;
 
   // Number of parameters used for compilation of stubs that require arguments.
   int parameter_count_;
 
   int optimization_id_;
 
   int osr_expr_stack_height_;
 
   // The current OSR frame for specialization or {nullptr}.
   JavaScriptFrame* osr_frame_ = nullptr;
 
   Vector<const char> debug_name_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationInfo);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILATION_INFO_H_