Potential endless loop in MaybeUsesImport visitor

[knutwannheden]

This bug has been observed, but so far we haven't had any time to reproduce it yet. It appears that the MaybeUsesImport visitor can get caught in an endless loop on some Kotlin sources. The loop in question is this one: https://github.com/openrewrite/rewrite/blob/19c73502d29abe475cb4360f293fbe2e7b3d0027/rewrite-java/src/main/java/org/openrewrite/java/search/MaybeUsesImport.java#L57-L76

            for (Expression expr = i.getQualid(); expr != prior; ) {
                if (expr instanceof J.Identifier) {
                    // this can only be the first segment
                    prior = expr;
                    if (!((J.Identifier) expr).getSimpleName().equals(segment)) {
                        return false;
                    }
                } else if (expr instanceof J.FieldAccess) {
                    J.FieldAccess fa = (J.FieldAccess) expr;
                    if (fa.getTarget() == prior) {
                        String simpleName = fa.getSimpleName();
                        if (!"*".equals(segment) && !simpleName.equals(segment) && !"*".equals(simpleName)) {
                            return false;
                        }
                        prior = fa;
                        continue;
                    }
                    expr = fa.getTarget();
                }
            }