Rule S2302: 'nameof' should be used

[Evangelink]

RSPEC-2302

Because parameter names could be changed during refactoring, they should not be spelled out literally in strings. Instead, use nameof(), and the string that's output will always be correct.

[Evangelink]

Let's update the RSPEC description to mention the locations where the rule will check for it.

[MaxTranced]

This has the same issue as
dotnet/roslyn-analyzers#1524

The rule should not be triggered for projects that set the advanced build setting "Language version" to C# 5 (any version prior to 6).

[michalb-sonar]

Thanks for suggestion @MaxTranced! I've created a ticket: #1162