RFInclusion into Icedtea6 1.7.1 release branch Shark API fixes for llvm 2.7 and Zero syncronization with upstream and zero S390 fixes

[Xerxes Rånby]

A list of changesets from Icedtea6 that i would like to have included in
Icedtea6 1.7.1 releasebranch for improved Shark API compatiblity with
LLVM 2.7, Zero upstream sync and zero S390 fixes.

http://icedtea.classpath.org/hg/icedtea6/rev/2b86a59d4446 - Whitespace
fixes
http://icedtea.classpath.org/hg/icedtea6/rev/a9569f1ff015 - Reformat
Shark to match upstream HotSpot
http://icedtea.classpath.org/hg/icedtea6/rev/9748785082e5 - Add 2010 to
some copyright headers that were missing it
http://icedtea.classpath.org/hg/icedtea6/rev/fee30f40652c -
ports/hotspot/make/linux/makefiles/shark.make: Comment fix.

http://icedtea.classpath.org/hg/icedtea6/rev/6571641c60ab - Update Shark
for LLVM r95390 API change.
http://icedtea.classpath.org/hg/icedtea6/rev/a508d7cd967a - Backport
"6927165: Zero S/390 fixes" from upstream
http://icedtea.classpath.org/hg/icedtea6/rev/6dccdd4c25c7 - Implemented
Shark host CPU feature autotuner using LLVM 2.7 APIs.
http://icedtea.classpath.org/hg/icedtea6/rev/8eb821cc2cd0 - Add s390
support to TCK setup helper script
http://icedtea.classpath.org/hg/icedtea6/rev/c4148e0a2984 - Synchronize
Zero with upstream
http://icedtea.classpath.org/hg/icedtea6/rev/fc600c234771 - Strip stupid
options that llvm-config supplies
http://icedtea.classpath.org/hg/icedtea6/rev/22be2c99a89b - Update Shark
for LLVM r94686 API change.
http://icedtea.classpath.org/hg/icedtea6/rev/d9e57470d35d - PR
icedtea/428: Remove -pedantic from LLVM_CFLAGS. (required for Strip
stupid options that llvm-config supplies)

Ok to merge?

Cheers
Xerxes