Fixed performance problem with decompiler.
(cherry picked from commit aefddec)
Fixed wrong implicit checks during most specific resolution. It shouldn't be specified for implicits itself and for general most specific resolution it can work faster, applicable only if required #SCL-6478 Fixed
(cherry picked from commit ca52a0c)
Do not use Java 1.7 API in JPS builder.
(cherry picked from commit aaf24e4)