[ddc] Adding runtime metrics to extra required libs

Part of https://dart-review.googlesource.com/c/sdk/+/244261

Change-Id: I09213f7e37d0d2b2e0d25607a0175228d1c36dbf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245285
Reviewed-by: Joshua Litt <joshualitt@google.com>
Commit-Queue: Mark Zhou <markzipan@google.com>

Author: Markzipan

pkg/dev_compiler/lib/src/kernel/target.dart

@@ -57,6 +57,7 @@ class DevCompilerTarget extends Target {
   @override
   List<String> get extraRequiredLibraries => const [
         'dart:_runtime',
+        'dart:_dart2js_runtime_metrics',
         'dart:_debugger',
         'dart:_foreign_helper',
         'dart:_interceptors',