Send updated sourceFile to getLiteralText

[armanio123]

Fixes #59085 (comment)

When the node's sourceFile is not the same as the currentSourceFile the method returns an incorrect position. In example, in the code below, the position will hit the comment text in foo.ts instead of bar.ts.

// @Filename: foo.ts
// Some comment that is going to be used instead on the correct ['constructor'] text.
import { Bar } from "./bar";

export class Foo extends Bar {
    // | <-- trigger completions here should show ['constructor'] from bar.ts. Instead, crashes.
}

// @Filename: bar.ts
export class ElementNode {
    ['constructor']!: any;
}

Note that I unsuccessfully tried creating the repro as a fourslash test but for some reason the completions api treats the whole thing as a single file avoiding the issue. Also, I don't know how to avoid the test that changed.

[armanio123]

Closed in favor of #58216