7020499: Project Coin: improvements to try-with-resources desugaring
Summary: Avoid unnecessary check for resource nullness if the resource is known to be non-null; put resource closing code in a method that is shared by multiple try-with-resources.
Reviewed-by: darcy, mcimadamore, vromero

8074432: Move jdeps and javap to jdk.jdeps module
Reviewed-by: jjg, alanb, erikj

8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8042451: Write tests for all possible kinds of type annotation
Summary: Add new tests for type annotations to improve case coverage
Reviewed-by: jjg, emc, abuckley