test: fix require-deps-deprecation for installed deps

Test test-require-deps-deprecation.js was failing when user already had
node installed with acorn in require.resolve range.

Modified test to acknowledge the possibility and throw only if acorn is
found in the deps directory.

PR-URL: #17848
Fixes: #17148
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-require-deps-deprecation.js

@@ -39,6 +39,17 @@ for (const m of deprecatedModules) {
   } catch (err) {}
 }
 
+// Instead of checking require, check that resolve isn't pointing toward a
+// built-in module, as user might already have node installed with acorn in
+// require.resolve range.
+// Ref: https://github.com/nodejs/node/issues/17148
 for (const m of deps) {
-  assert.throws(() => { require(m); }, /^Error: Cannot find module/);
+  let path;
+  try {
+    path = require.resolve(m);
+  } catch (err) {
+    assert.ok(err.toString().startsWith('Error: Cannot find module '));
+    continue;
+  }
+  assert.notStrictEqual(path, m);
 }