Downgrade "err_init_list_variable_narrowing" into a warning in Microsoft mode even if c++0x is enabled. This necessary to parse MSVC code in C++0x mode.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137904 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed