psandoz [Wed, 29 Nov 2017 12:39:59 -0800] rev 47985
8187237: Need to define the behaviour for 0 and 1 argument method type in StringConcatFactory.makeConcat
8186737: Lookup argument for StringConcatFactory.makeConcat & makeConcatWithConstants cannot have privileges less than PRIVATE
Reviewed-by: mchung