buildCodeFrameError errors when using babel-traverse standalone (T7513)

[babel-bot]

Issue originally made by @spicyj

Bug information

• Babel version: 6.11.6
• Node version: 6
• npm version: 3

Description

var traverse = require('babel-traverse').default, babylon = require('babylon');
traverse(babylon.parse('let x; let x;'))

should throw an error about duplicate bindings, but it throws

TypeError: Cannot read property file of undefined
    at Scope.checkBlockScopedCollisions (node_modules/babel-traverse/lib/scope/index.js:492:21)
    at Scope.registerBinding (node_modules/babel-traverse/lib/scope/index.js:681:16)
    at Scope.registerDeclaration (node_modules/babel-traverse/lib/scope/index.js:580:14)
    ...
    at TraversalContext.visit (node_modules/babel-traverse/lib/context.js:219:19)
    at Function.traverse.node (node_modules/babel-traverse/lib/index.js:171:17)
    at traverse (node_modules/babel-traverse/lib/index.js:90:12)
    at repl:1:81

instead because this.hub is undefined on this line:

babel/packages/babel-traverse/src/scope/index.js

Line 350 in dce9ee9

throw this.hub.file.buildCodeFrameError(id, messages.get("scopeDuplicateDeclaration", name), TypeError);

.

Can we fix this as-is? Do I need to pass in a File object of some sort (how would I construct one)?

(I'm actually passing sourceFilename and code to traverse already.)

[sompylasar]

Refs #4640