Nicolò Ribaudo b0524427c1 Wrap an arrow function in parentheses if it the test of a conditional expression (#5820)
* Wrap an arrow function in parentheses if it the test of a conditional expression

Fixes #5819

* Use ConditionalExpresion to check if () => {} should be wrapped

* Move `t.isTaggedTemplateExpression()` from ArrowFunctionExpression to
  ConditionalExpresion

* [test] `await (() => {})` needs the parentheses

* [test] (a ? b : c)`` needs the parentheses
2017-06-05 12:39:28 -04:00
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