lib: added SuiteContext class

added SuiteContext class to replace object literal

Fixes: #45641
Refs: #45641 (comment)
PR-URL: #45687
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

lib/internal/test_runner/test.js

@@ -146,6 +146,22 @@ class TestContext {
   }
 }
 
+class SuiteContext {
+  #suite;
+
+  constructor(suite) {
+    this.#suite = suite;
+  }
+
+  get signal() {
+    return this.#suite.signal;
+  }
+
+  get name() {
+    return this.#suite.name;
+  }
+}
+
 class Test extends AsyncResource {
   #abortController;
   #outerSignal;
@@ -737,7 +753,8 @@ class Suite extends Test {
   }
 
   getRunArgs() {
-    return { ctx: { signal: this.signal, name: this.name }, args: [] };
+    const ctx = new SuiteContext(this);
+    return { ctx, args: [ctx] };
   }
 
   async run() {