10 January 2020. Summary of changes for version 20200110:

1) ACPICA kernel-resident subsystem:

Updated all copyrights to 2020. This affects all ACPICA source code modules.

2) iASL Compiler/Disassembler and ACPICA tools:

ASL test suite (ASLTS): Updated all copyrights to 2020.

Tools and utilities: Updated all signon copyrights to 2020.

iASL: fix forward reference analysis for field declarations. Fixes forward reference analysis for field declarations by searching the parent scope for the named object when the object is not present in the current scope.

iASL: Improved the error output for ALREADY_EXISTS errors. Now, the full pathname of the name that already exists is printed.

iASL: Enhance duplicate Case() detection for buffers. Add check for buffers with no initializer list (these buffers will be filled with zeros at runtime.)