[turbofan] Add MachineType to LinkageLocation

test/cctest/compiler/test-run-machops.cc

 // 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.
 
 #include <cmath>
 #include <functional>
 #include <limits>
 
 #include "src/base/bits.h"
 #include "src/base/ieee754.h"
@@ skipping 6410 matching lines @@
   // TODO(titzer): all this descriptor hackery is just to call the above
   // functions as code objects instead of direct addresses.
   CSignature0<int32_t> sig;
   CallDescriptor* c = Linkage::GetSimplifiedCDescriptor(r.zone(), &sig);
   LinkageLocation ret[] = {c->GetReturnLocation(0)};
   Signature<LinkageLocation> loc(1, 0, ret);
   CallDescriptor* desc = new (r.zone()) CallDescriptor(  // --
       CallDescriptor::kCallCodeObject,                   // kind
       MachineType::AnyTagged(),                          // target_type
       c->GetInputLocation(0),                            // target_loc
-      &sig,                                              // machine_sig
       &loc,                                              // location_sig
       0,                                                 // stack count
       Operator::kNoProperties,                           // properties
       c->CalleeSavedRegisters(),                         // callee saved
       c->CalleeSavedFPRegisters(),                       // callee saved FP
       CallDescriptor::kNoFlags,                          // flags
       "c-call-as-code");
   Node* call = r.AddNode(r.common()->Call(desc), phi);
   r.Return(call);
 
@@ skipping 18 matching lines @@
   r.Goto(&merge);
   r.Bind(&merge);
   Node* phi = r.Phi(MachineRepresentation::kWord32, fa, fb);
   r.Return(phi);
   CHECK_EQ(1, r.Call(1));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8