Items missing from code-completion when using the await keyword

[DanTup]

I was just working on some tests for the vs code validator in flutter doctor and noticed something unexpected with the code completion. The code is part of #14463.

Here's the working/correct code (the validate method returns a Future):

I deleted installedWithExtension and invoked code completion, but installedWithExtension wasn't listed in the completion:

If I remove the await then it showed as expected:

(@bwilkerson lmk if there's value in cc'ing you in cases like this; I don't know how cases are normally triaged and whether this makes it easier/more efficient!)

[bwilkerson]

I don't know how cases are normally triaged ...

We have a (rotating) person assigned to triage issues by adding an area label, then people in each area that do further triage, such as whether the issue represents a bug, what the priority is, etc.

I usually do the triage for area-analyzer, so it's fairly likely that I'll see a report like this without being cc'd, but it also doesn't hurt anything if I see it before the area is assigned because I can also assign the area (and won't triage it twice).

[DanTup]

@bwilkerson I'm not sure I feel any more knowledgeable about whether it's better to notify or not =) So, in the interests of adding to the notifications you probably get tons of, I'll skip notifying you (unless it's something I have a specific question for you) - though lmk if you decide you'd prefer the other.

[bwilkerson]

Given the code

class C {
  static Future<int> method() async => 0;
}
void f() {
  String s = await C..toString();
}

(which might be too simple to trigger the bug) we now suggest method both with and without the await, so I'm closing this issue.