8034223: Most-specific should not have any special treatment for boxed vs. unboxed types
Summary: Rewrite most-specific logic to conform to JLS 8 15.12.2.5
Reviewed-by: vromero
1 MostSpecific04.java:48:11: compiler.err.ref.ambiguous: map, kindname.method, map(MostSpecific04.DoubleMapper<? super E>), MostSpecific04.MyList, kindname.method, map(MostSpecific04.LongMapper<? super E>), MostSpecific04.MyList