Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/@protobufjs/aspromise/index.d.ts

@@ -0,0 +1,13 @@
+export = asPromise;
+
+type asPromiseCallback = (error: Error | null, ...params: any[]) => {};
+
+/**
+ * Returns a promise from a node-style callback function.
+ * @memberof util
+ * @param {asPromiseCallback} fn Function to call
+ * @param {*} ctx Function context
+ * @param {...*} params Function arguments
+ * @returns {Promise<*>} Promisified function
+ */
+declare function asPromise(fn: asPromiseCallback, ctx: any, ...params: any[]): Promise<any>;