message: Use guard clause
diff: @@ -47,9 +47,11 @@ function createVisitor(
  }
  function createMergeIfStatements(path: t.SelectablePath<t.IfStatement>) {
  - return t.hasAlternate(path)
  - ? new MergeAlternateWithNestedIf(path)
  - : new MergeConsequentWithNestedIf(path);
  + if (t.hasAlternate(path)) {
  + return new MergeAlternateWithNestedIf(path);
  + }
  +
  + return new MergeConsequentWithNestedIf(path);
  }
  class MergeConsequentWithNestedIf implements MergeIfStatements {
  