[wasm] Use proper zap value for jump table zapping.

R=clemensh@chromium.org

Change-Id: Ie699372bd60fe6e78107cc2a53d90e8fe83a835e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532322
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60375}

src/wasm/wasm-code-manager.cc

@@ -735,7 +735,7 @@ WasmCode* NativeModule::CreateEmptyJumpTable(uint32_t jump_table_size) {
   // Only call this if we really need a jump table.
   DCHECK_LT(0, jump_table_size);
   Vector<uint8_t> code_space = AllocateForCode(jump_table_size);
-  memset(code_space.begin(), 0, code_space.size());
+  ZapCode(reinterpret_cast<Address>(code_space.begin()), code_space.size());
   std::unique_ptr<WasmCode> code{new WasmCode{
       this,                                     // native_module
       WasmCode::kAnonymousFuncIndex,            // index