ElementAccessExpression + SimpleAssignmentExpression with StringConcatentation

[belav]

This used to format a little better, but still was weird. Now it is even worse.

attrs[
    "class"
] = HtmlHelper.ValidationInputCssClassName +
" " +
currentValue;
// should probably be
attrs["class"] = 
    HtmlHelper.ValidationInputCssClassName +
    " " +
    currentValue;

[belav]

Probably related

        httpContext.Response.Headers[
            HeaderNames.XFrameOptions
        ] = "SAMEORIGIN1111111111111111111111";
// should be
        httpContext.Response.Headers[HeaderNames.XFrameOptions]
            = "SAMEORIGIN1111111111111111111111";

[belav]

I believe this should wait til after #7

[belav]

The second case will be addressed in #451