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

8062348: langtools tests should close file manager (group 1)
Reviewed-by: darcy

8034245: Refactor TopLevel tree node.
Summary: Added JCPackageDecl to JCTree to store package-level information.
Reviewed-by: jjg, jlahoda

7174143: encapsulate doc comment table
Reviewed-by: ksrini, mcimadamore

7096014: Javac tokens should retain state
Summary: Refactor javac tokens from enum constants to stateful instances (to keep track of position, comments, etc.)
Reviewed-by: jjg