8182848: Some functions misplaced in debug.hpp
Summary: moved to vmError.hpp,cpp where they seemed more appropriate
Reviewed-by: stefank, stuefe

8169317: [s390] Various minor bug fixes and adaptions.
Reviewed-by: mdoerr

8167673: [s390] The s390 port.
Summary: template interpreter, C1, C2
Reviewed-by: kvn, simonis