Make sure pub build/serve get at the right time:

sdk/lib/_internal/pub/test/serve/does_not_get_first_if_locked_matches_override_test.dart

Index: sdk/lib/_internal/pub/test/serve/does_not_get_first_if_locked_matches_override_test.dart
diff --git a/sdk/lib/_internal/pub/test/serve/does_not_get_first_if_a_dependency_is_removed_test.dart b/sdk/lib/_internal/pub/test/serve/does_not_get_first_if_locked_matches_override_test.dart
similarity index 63%
copy from sdk/lib/_internal/pub/test/serve/does_not_get_first_if_a_dependency_is_removed_test.dart
copy to sdk/lib/_internal/pub/test/serve/does_not_get_first_if_locked_matches_override_test.dart
index 48ab3c109eca4314ab7ae81ae2d32c4d6c3ea4aa..5c4ed3af6c0557c252210d0cc5876f60587ef0ec 100644
--- a/sdk/lib/_internal/pub/test/serve/does_not_get_first_if_a_dependency_is_removed_test.dart
+++ b/sdk/lib/_internal/pub/test/serve/does_not_get_first_if_locked_matches_override_test.dart
@@ -9,8 +9,9 @@ import '../test_pub.dart';
 import 'utils.dart';
 
 main() {
+  // This is a regression test for https://dartbug.com/15180.
   initConfig();
-  integration("does not get if a dependency is removed", () {
+  integration("does not get if the locked version matches the override", () {
     d.dir("foo", [
       d.libPubspec("foo", "0.0.1"),
       d.libDir("foo")
@@ -18,17 +19,21 @@ main() {
 
     // Get "foo" into the lock file.
     d.dir(appPath, [
-      d.appPubspec({
-        "foo": {"path": "../foo"}
+      d.pubspec({
+        "name": "myapp",
+        "dependencies": {
+          "foo": "any"
+        },
+        "dependency_overrides": {
+          "foo": {
+            "path": "../foo",
+            "version": ">=0.0.1"
+          }
+        }
       })
     ]).create();
     pubGet();
 
-    // Remove it from the pubspec.
-    d.dir(appPath, [
-      d.appPubspec()
-    ]).create();
-
     pubServe(shouldGetFirst: false);
     requestShouldSucceed("packages/foo/foo.dart", 'main() => "foo";');
     endPubServe();