Disallow more instructions at one line

[branoholy]

More instructions at one line are not correctly shown in the coverage results.

The line below is marked as tested even if the method is never called.

if(obj != nullptr) obj->method();

A split to more lines should correct it.

if(obj != nullptr)
    obj->method();

It is necessary to

• change the beautifier settings,
• reformat the source code,
• check new coverage results.