tslint is going crazy when installed via yarn 1.1.0

[Hotell]

Bug Report

• TSLint version: 5.7.0
• TypeScript version: 2.2.2
• Running TSLint via: (pick one) CLI

TypeScript code being linted

function createSpacebarKeypressEvent() {
    return new KeyboardEvent(
      'keypress',
      {
        keyCode: 32,
        which: 32,
        charCode: 32,
      } as any
    )
  }

havoc follows:

with tslint.json configuration:

{
  "extends": [
    "tslint:latest"
  ],
  "jsRules": {},
  "rulesDirectory": [],
  "rules": {}
}

Actual behavior

when we switched to latest yarn 1.1.0 all builds started to fail on described tslint super weird errors

with npm install everything works as expected

Expected behavior

no errors

[adidahiya]

I'd prefer to keep the discussion to #3251; do you think this is materially different? The fix will likely be the same for both issues.

[Hotell]

fair enough, although #3251 has kinda confusing title ... :)