[wasm] Move protected instruction info to RelocInfo

src/trap-handler/trap-handler.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_TRAP_HANDLER_H_
 #define V8_TRAP_HANDLER_H_
 
 namespace v8 {
 namespace internal {
 namespace trap_handler {
 
 struct ProtectedInstructionData {
   // The offset of this instruction from the start of its code object.
-  int32_t instr_offset;
+  intptr_t instr_offset;
 
   // The offset of the landing pad from the start of its code object.
   //
   // TODO(eholk): Using a single landing pad and store parameters here.
-  int32_t landing_offset;
+  intptr_t landing_offset;
 };
 
 }  // namespace trap_handler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TRAP_HANDLER_H_