[turbofan] Remove the function reload hack for OSR.

src/compiler/linkage.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_LINKAGE_H_
 #define V8_COMPILER_LINKAGE_H_
 
 #include "src/base/flags.h"
 #include "src/compiler/frame.h"
 #include "src/compiler/operator.h"
@@ skipping 58 matching lines @@
                               kPointerSize);
   }
 
   static LinkageLocation ForSavedCallerConstantPool() {
     DCHECK(V8_EMBEDDED_CONSTANT_POOL);
     return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset -
                                StandardFrameConstants::kConstantPoolOffset) /
                               kPointerSize);
   }
 
+  static LinkageLocation ForSavedCallerMarker() {
+    return ForCalleeFrameSlot((StandardFrameConstants::kCallerPCOffset -
+                               StandardFrameConstants::kMarkerOffset) /
+                              kPointerSize);
+  }
+
   static LinkageLocation ConvertToTailCallerLocation(
       LinkageLocation caller_location, int stack_param_delta) {
     if (!caller_location.IsRegister()) {
       return LinkageLocation(STACK_SLOT,
                              caller_location.GetLocation() - stack_param_delta);
     }
     return caller_location;
   }
 
  private:
@@ skipping 300 matching lines @@
   CallDescriptor* const incoming_;
 
   DISALLOW_COPY_AND_ASSIGN(Linkage);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_LINKAGE_H_