Add some further test cases.
Check for BlockStatement, the only valid exception is an IfStatement in alternative of an other IfStatement.
Merge branch 'evanvosberg-fix/enforce-braces-non-expression-statement'

* evanvosberg-fix/enforce-braces-non-expression-statement:
  Check for BlockStatement, the only valid exception is an IfStatement in alternative of an other IfStatement.
  Add some further test cases.
0.4.0