Fix error in 'use-brace-expansion' rule

[dwickern]

The test fails with this error:

  1) use-brace-expansion valid { test: Ember.computed.filterBy('a', 'b', false) }:
     TypeError: e.value.split is not a function
      at CallExpression.node.arguments.filter.map.e (rules/use-brace-expansion.js:9:954)
      at Array.map (native)
      at EventEmitter.CallExpression (rules/use-brace-expansion.js:9:892)
      at NodeEventGenerator.enterNode (node_modules/eslint/lib/util/node-event-generator.js:39:22)
      at CodePathAnalyzer.enterNode (node_modules/eslint/lib/code-path-analysis/code-path-analyzer.js:607:23)
      at CommentEventGenerator.enterNode (node_modules/eslint/lib/util/comment-event-generator.js:97:23)
      at Controller.enter (node_modules/eslint/lib/eslint.js:928:36)
      at Controller.__execute (node_modules/estraverse/estraverse.js:397:31)

The rule fails on this AST node:

Node {
  type: 'Literal',
  start: 828,
  end: 833,
  loc:
   SourceLocation {
     start: Position { line: 25, column: 62 },
     end: Position { line: 25, column: 67 } },
  range: [ 828, 833 ],
  value: false,
  raw: 'false' }

[michalsnik]

Good catch @dwickern ! Thanks :)

[michalsnik]

Version v2.0.1 released with your patch 🎉