test case for wildcard type variable surrounded by line breaks

[rw7]

What changed with this PR:

Added tests as a show case of #720.

Example

// Input

for(SomeClass<?> elem : elements) for(SomeClass<?> elem : elements) for(SomeClass<?> elem : elements)
            doSomeThing();

// Output
for (SomeClass<?> elem : elements) for (SomeClass<
      ?
    > elem : elements) for (SomeClass<?> elem : elements) doSomeThing();

[CLAassistant]

All committers have signed the CLA.

[jtkiesel]

Superseded by #731.