[wasm] NativeModule::module() should just return its module

No need to go via the {ModuleEnv} in the {CompilationState}.

R=mstarzinger@chromium.org

Change-Id: I11ff647824ad107131ce329453b365d6ecaec7fb
Reviewed-on: https://chromium-review.googlesource.com/1118561Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54102}

src/wasm/wasm-code-manager.cc

@@ -663,10 +663,6 @@ Address NativeModule::AllocateForCode(size_t size) {
   return mem.start;
 }
 
-const WasmModule* NativeModule::module() const {
-  return GetModuleEnv(compilation_state_.get())->module;
-}
-
 WasmCode* NativeModule::Lookup(Address pc) const {
   if (owned_code_.empty()) return nullptr;
   auto iter = std::upper_bound(owned_code_.begin(), owned_code_.end(), pc,

src/wasm/wasm-code-manager.h

@@ -321,7 +321,7 @@ class V8_EXPORT_PRIVATE NativeModule final {
   void set_wire_bytes(OwnedVector<const byte> wire_bytes) {
     wire_bytes_ = std::move(wire_bytes);
   }
-  const WasmModule* module() const;
+  const WasmModule* module() const { return module_.get(); }
 
   WasmCode* Lookup(Address) const;