[Test] import/named should support export = assignment of object in TS

[ProdigySim]

This pattern is valid typescript, but import/named can't find resolve the imports. Relevant issue: #1984

Here's a demo showing that it should work in TS

This test currently does not run, as no TS tests in named.js are currently running: waiting for #2427

Once the test is wired up, it fails with:

  1) TypeScript named [TypeScript] valid import { FooBar } from './typescript-export-assign-object':

      AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Should have no errors but had 1: [
  {
    ruleId: 'named [TypeScript]',
    severity: 1,
    message: "FooBar not found in './typescript-export-assign-object'",
    line: 1,
    column: 10,
    nodeType: 'Identifier',
    endLine: 1,
    endColumn: 16
  }
]
      + expected - actual

      -1
      +0

[ljharb]

whoops, didn't mean to merge this.

i'm going to revert it; it'd be great if you could open a new PR re-adding it.

[ProdigySim]

You got it, thanks for taking a look at these @ljharb! Reopened at #2432