Formatter: + and - after { are unary operators.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@172301 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: * and & are binary operators after ) and ].

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@172302 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: * and & are binary operators before ( and [.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@172303 91177308-0d34-0410-b5e6-96231b3b80d8