[wasm] Reimplement function verification in the module decoder.

test/common/wasm/wasm-module-runner.h

Index: test/common/wasm/wasm-module-runner.h
diff --git a/test/common/wasm/wasm-module-runner.h b/test/common/wasm/wasm-module-runner.h
index 3c597b3330c00640ed147eb64ab50f8df476b5c8..d6702e1e37887e94309e520f9457abfc63efdafc 100644
--- a/test/common/wasm/wasm-module-runner.h
+++ b/test/common/wasm/wasm-module-runner.h
@@ -19,11 +19,9 @@ namespace wasm {
 namespace testing {
 
 // Decodes the given encoded module.
-const WasmModule* DecodeWasmModuleForTesting(Isolate* isolate,
-                                             ErrorThrower* thrower,
-                                             const byte* module_start,
-                                             const byte* module_end,
-                                             ModuleOrigin origin);
+const WasmModule* DecodeWasmModuleForTesting(
+    Isolate* isolate, ErrorThrower* thrower, const byte* module_start,
+    const byte* module_end, ModuleOrigin origin, bool verify_functions = false);
 
 // Instantiates a module without any imports and exports.
 const Handle<JSObject> InstantiateModuleForTesting(Isolate* isolate,