Add some missing diagnostics for C++11 narrowing conversions.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174337 91177308-0d34-0410-b5e6-96231b3b80d8
Remove sparse text on diagnostic options.  These are not really documented anywhere, and they really aren't for normal users.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174338 91177308-0d34-0410-b5e6-96231b3b80d8
PR15095: Use more correct source locations for the InitListExpr we fake up for
vector initialization. Patch by John Stratton!


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174339 91177308-0d34-0410-b5e6-96231b3b80d8