test: increase runInAsyncScope() coverage

We don't appear to have any test coverage for passing the `thisArg` argument to `runInAsyncScope()`. Test coverage stats seem to bear this out. Add a test for it. PR-URL: #36624 Reviewed-By: Antoine du Hamel <[email protected]> Reviewed-By: Michaël Zasso <[email protected]>

Author: Trott

test/parallel/test-async-hooks-run-in-async-scope-this-arg.js

@@ -0,0 +1,17 @@
+'use strict';
+
+// Test that passing thisArg to runInAsyncScope() works.
+
+constcommon=require('../common');
+constassert=require('assert');
+const{ AsyncResource }=require('async_hooks');
+
+constthisArg={};
+
+constres=newAsyncResource('fhqwhgads');
+
+functioncallback(){
+assert.strictEqual(this,thisArg);
+}
+
+res.runInAsyncScope(common.mustCall(callback),thisArg);