[wasm] Rename WasmModuleInstance to WasmInstance.

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

Index: test/common/wasm/wasm-module-runner.cc
diff --git a/test/common/wasm/wasm-module-runner.cc b/test/common/wasm/wasm-module-runner.cc
index 588f49b23abe31277f4673f8373df3c7d920cc4d..98166ee422e574a88d264a26bdb159a4a60a5143 100644
--- a/test/common/wasm/wasm-module-runner.cc
+++ b/test/common/wasm/wasm-module-runner.cc
@@ -147,7 +147,7 @@ int32_t InterpretWasmModule(Isolate* isolate, ErrorThrower* thrower,
   }
 
   // The code verifies, we create an instance to run it in the interpreter.
-  WasmModuleInstance instance(module);
+  WasmInstance instance(module);
   instance.context = isolate->native_context();
   instance.mem_size = GetMinModuleMemSize(module);
   // TODO(ahaas): Move memory allocation to wasm-module.cc for better