assert.strictEqual(false, anyArgument) triggers unreachable code error for any code below after the recent @types/node update. This only reproduces with @types/node 10.17.24, 12.12.41, 13.13.8 (published recently).

Note that it only reproduces with false as a value being checked. Replace it with anything else and it will compile.

This looks to me like a tsc problem rather than types problem (I reported it in microsoft/TypeScript#38699) but the fastest fix would be rolling back the @types/node changes, so I'm duplicating the issue here as well.

TypeScript Version: 3.9.3, also reproduces on 3.8.x

Code

import * as assert from 'assert';

const b = false;
assert.strictEqual(false, b);
console.log('really unreachable?');

Expected behavior: should compile with --allowUnreachableCode false.

Actual behavior:

$ npx tsc --allowUnreachableCode false src/index.ts 
src/index.ts:5:1 - error TS7027: Unreachable code detected.

5 console.log('really unreachable?');
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Found 1 error.

This looks to be directly caused by recent releases of @types/node with this commit e910379 included.

• I tried using the @types/xxxx package and had problems.
• I tried using the latest stable version of tsc. https://www.npmjs.com/package/typescript
• I have a question that is inappropriate for StackOverflow. (Please ask any appropriate questions there).
• Mention the authors (see Definitions by: in index.d.ts) so they can respond.
  • Authors: @G-Rath as a commit author