[PATCH] Improve attributes printing.

[Michael Han]

  Thanks Richard! You are right this is fragile and will break for cases like inheritable attributes, which I overlooked.

  The primary goal of this patch is to fix C++11 attributes printing, so I am thinking for now we can just check if an attribute is a C++11 attribute and if it is then print it immediately after the declarator because we don't support any C++11 attributes appertain to types yet.  What do you think?

http://llvm-reviews.chandlerc.com/D395