test/tools/javac/lambda contains 9 positive tests in the 'MostSpecificNN.java' set. The tests confirm that the given pair of methods is disambiguated, but don't confirm that the compiler makes the correct choice. These should add a 'main' jtreg step that verifies that the wanted method is run, rather than the less-specific one.

List of tests:
MostSpecific10
MostSpecific11
MostSpecific15
MostSpecific17
MostSpecific18
MostSpecific20
MostSpecific22
MostSpecific27
MostSpecific29