Print MachineTypes when using --trace-turbo-graph.

src/compiler/common-operator.h

 // Copyright 2014 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_COMPILER_COMMON_OPERATOR_H_
 #define V8_COMPILER_COMMON_OPERATOR_H_
 
 #include "src/assembler.h"
 #include "src/compiler/frame-states.h"
 #include "src/machine-type.h"
@@ skipping 118 matching lines @@
   RelocInfo::Mode rmode_;
   Type type_;
 };
 
 bool operator==(RelocatablePtrConstantInfo const& lhs,
                 RelocatablePtrConstantInfo const& rhs);
 bool operator!=(RelocatablePtrConstantInfo const& lhs,
                 RelocatablePtrConstantInfo const& rhs);
 std::ostream& operator<<(std::ostream&, RelocatablePtrConstantInfo const&);
 size_t hash_value(RelocatablePtrConstantInfo const& p);
+std::ostream& operator<<(std::ostream& os,
+                         const ZoneVector<MachineType>* types);
 
 // Interface for building common operators that can be used at any level of IR,
 // including JavaScript, mid-level, and low-level.
 class CommonOperatorBuilder final : public ZoneObject {
  public:
   explicit CommonOperatorBuilder(Zone* zone);
 
   const Operator* Dead();
   const Operator* End(size_t control_input_count);
   const Operator* Branch(BranchHint = BranchHint::kNone);
@@ skipping 66 matching lines @@
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(CommonOperatorBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_COMMON_OPERATOR_H_