Add some debug printing to complex_reload_test and enable on Windows bots again

runtime/observatory/tests/service/complex_reload_test.dart

Index: runtime/observatory/tests/service/complex_reload_test.dart
diff --git a/runtime/observatory/tests/service/complex_reload_test.dart b/runtime/observatory/tests/service/complex_reload_test.dart
index 0b94084d88fd52940c50889b82d917de3b9c2213..848a1935fe41c3d6518b3a018a315be8947ed08e 100644
--- a/runtime/observatory/tests/service/complex_reload_test.dart
+++ b/runtime/observatory/tests/service/complex_reload_test.dart
@@ -46,6 +46,10 @@ var tests = [
   // Stop at 'debugger' statement.
   hasStoppedAtBreakpoint,
   (Isolate mainIsolate) async {
+    for (var i = 0; i < Platform.script.pathSegments.length; i++) {
+      print('segment $i: "${Platform.script.pathSegments[i]}"');
+    }
+    print('Directory: $directory');
     // Grab the VM.
     VM vm = mainIsolate.vm;
     await vm.reloadIsolates();