Object property completion doesn't show properties from other overloads

[bpasero]

TS Template added by @mjbvz

TypeScript Version: 4.3.0-dev.20210503

Search Terms

• suggest / suggestion
• Completion

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Steps to Reproduce:

1. open code that leverages FileWorkingCopyManager2 e.g. here
2. type manager.resolve({ and trigger intellisense
3. notice the 3 overloads, pick the second or third one

=> 🐛 try to complete on associatedResource or untitledResource but you only see contents

[mjbvz]

It appears that TS only shows the common property in this case. Here's a minimal example of the issue:

interface I {
    x: number;
}
interface A extends I {
    a: number;
}
interface B extends I {
    b: number;
}

declare function foo(x: I): void;
declare function foo(a: A): void;
declare function foo(b: B): void;

foo({ })