* 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
