8169197: Improve error reporting for compiling against unexported package
Summary: When a type cannot be found, look into other modules, search for possible viable types, and report them conveniently to the user.
Reviewed-by: mcimadamore, jjg

8169074: Build is failing after JDK-8166538
Summary: Reverting d3dde3f775b8
Reviewed-by: darcy

8166538: Improve error reporting for compiling against unexported package
Summary: When a type cannot be found, look into other modules, search for possible viable types, and report them conveniently to the user.
Reviewed-by: mcimadamore, jjg