Multi-line template literal test case.

I noticed that a function which returns a template literal throws a linting error. I don't think this should be the case. Oddly enough it works properly if you put an interpolated variable ${} in the first line of the literal. The following errors are thrown when I run the attached test case:

```
  [bold]{Line 4, Char 9} Missing semicolon.
  [bold]{Line 6, Char 1} Expected an assignment or function call and instead saw an expression.
  [bold]{Line 7, Char 2} Unnecessary semicolon.
```


@caitp @rwaldron - Do you guys have any pointers of where to look into to fix this?
Please don't change existing tests, just add news ones :)