8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
8182656: Make the required changes in GC code to build on OSX 10 + Xcode 8
8182657: Make the required changes in Runtime code to build on OSX 10 + Xcode 8
8182658: Make the required changes in Compiler code to build on OSX 10 + Xcode 8
Reviewed-by: jwilhelm, ehelin, phh
Contributed-by: phh <hohensee@amazon.com>, jwilhelm <jesper.wilhelmsson@oracle.com>

8079473: allow demangling to be optional in dll_address_to_function_name
Summary: add a demangling boolean argument to dll_address_to_function_name and decode
Reviewed-by: dholmes, simonis

8019929: PPC64 (part 107): Extend ELF-decoder to support PPC64 function descriptor tables
Summary: Extend ELF-decoder to support PPC64 function descriptor tables
Reviewed-by: kvn, zgu

7186778: MachO decoder implementation for MacOSX
Summary: Implementation of decoder for Apple's MacOSX. The implementation is based on the patch provided by Kevin Walls.
Reviewed-by: coleenp, kamg, kevinw

7141259: Native stack is missing in hs_err
Summary: Code cleanup and creating a private decoder for error handler, since it can be triggered from in signal handler, where no lock can be taken
Reviewed-by: dholmes, kamg, acorn, coleenp

7071311: Decoder enhancement
Summary: Made decoder thread-safe
Reviewed-by: coleenp, kamg