Log Message:
polly: updated to 10.0.0

In Polly 10 the following important changes have been incorporated.

The mechanism that Polly uses to link itself statically into the opt, bugpoint \ 
and clang executables has been generalized such that it can be used by other \ 
pass plugins. An example plugin “Bye” has been added to LLVM to illustate \ 
the mechanism.
Some ScopInfo methods that are only relevant during SCoP construction have been \ 
moved into the ScopBuilder class. In addition to making it clearer which methods \ 
can only be used during the construction phase, the refactoring helps shrinking \ 
the size of the public header ScopInfo.h.