[wasm] Reimplement function verification in the module decoder.

test/fuzzer/wasm-code.cc

Index: test/fuzzer/wasm-code.cc
diff --git a/test/fuzzer/wasm-code.cc b/test/fuzzer/wasm-code.cc
index 49411c3f418606263f2a7ad89a829fc1adeea511..3f7b09188353ea743429a081ae9d4a7574a638ac 100644
--- a/test/fuzzer/wasm-code.cc
+++ b/test/fuzzer/wasm-code.cc
@@ -57,7 +57,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   ErrorThrower interpreter_thrower(i_isolate, "Interpreter");
   std::unique_ptr<const WasmModule> module(testing::DecodeWasmModuleForTesting(
       i_isolate, &interpreter_thrower, buffer.begin(), buffer.end(),
-      v8::internal::wasm::ModuleOrigin::kWasmOrigin));
+      v8::internal::wasm::ModuleOrigin::kWasmOrigin, true));
 
   if (module == nullptr) {
     return 0;