SI-8445, SI-6622 test cases, already fixed

[lrytz]

They were most likely fixed in #3931 / e310746.

The test case for SI-6622 is taken from Jason's PR #2654. I adjusted
the EnclosingMethod to be null in two places in the check file, for
the classes that are owned by fields (not methods).

[lrytz]

Review by @retronym

[retronym]

I'm sure we've discussed this, but what is the justification for have a null enclosing method, rather than using the constructor or the accessor?

[retronym]

Oh, it is in line with the analogous Java code, so...

% cat sandbox/Test.java
class Test {
    public Object x = new Object() {};

    public static void main(String... args) {
        System.out.println(new Test().x.getClass().getEnclosingMethod());
    }
}

% javac -d /tmp sandbox/Test.java && java -classpath /tmp Test
null

LGTM