[wasm] Use more precise types for some WASM objects.

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 d6702e1e37887e94309e520f9457abfc63efdafc..74553edb05211b2120ddd3b961bcd7cc3b60ddd3 100644
--- a/test/common/wasm/wasm-module-runner.h
+++ b/test/common/wasm/wasm-module-runner.h
@@ -10,6 +10,7 @@
 #include "src/objects.h"
 #include "src/wasm/wasm-interpreter.h"
 #include "src/wasm/wasm-module.h"
+#include "src/wasm/wasm-objects.h"
 #include "src/wasm/wasm-result.h"
 #include "src/zone/zone.h"
 
@@ -24,9 +25,8 @@ const WasmModule* DecodeWasmModuleForTesting(
     const byte* module_end, ModuleOrigin origin, bool verify_functions = false);
 
 // Instantiates a module without any imports and exports.
-const Handle<JSObject> InstantiateModuleForTesting(Isolate* isolate,
-                                                   ErrorThrower* thrower,
-                                                   const WasmModule* module);
+const Handle<WasmInstanceObject> InstantiateModuleForTesting(
+    Isolate* isolate, ErrorThrower* thrower, const WasmModule* module);
 
 int32_t CallWasmFunctionForTesting(Isolate* isolate, Handle<JSObject> instance,
                                    ErrorThrower* thrower, const char* name,
@@ -46,7 +46,7 @@ int32_t InterpretWasmModule(Isolate* isolate, ErrorThrower* thrower,
                             WasmVal* args, bool* may_produced_nan);
 
 // Compiles WasmModule bytes and return an instance of the compiled module.
-const Handle<JSObject> CompileInstantiateWasmModuleForTesting(
+const Handle<WasmInstanceObject> CompileInstantiateWasmModuleForTesting(
     Isolate* isolate, ErrorThrower* thrower, const byte* module_start,
     const byte* module_end, ModuleOrigin origin);