With dosish filename, it misgenerates an improper extra entry.
!1 = metadata !{metadata !"E:\5Cllvm\5Cllvm-project\5Cclang\5Ctest\5CCodeGenCXX/debug-info-namespace.cpp", metadata !"E:\5Cllvm\5Cbuild\5Cninja-win32-vs11\5Ctools\5Cclang\5Ctest\5CCodeGenCXX"}
!8 = metadata !{metadata !"E:\5Cllvm\5Cllvm-project\5Cclang\5Ctest\5CCodeGenCXX\5Cdebug-info-namespace.cpp", metadata !"E:\5Cllvm\5Cbuild\5Cninja-win32-vs11\5Ctools\5Cclang\5Ctest\5CCodeGenCXX"}
!8 is unexpected.
llvm-svn: 178061
// CHECK: [[NS]] = {{.*}}, metadata [[FILE2:![0-9]*]], metadata [[CTXT:![0-9]*]], {{.*}} ; [ DW_TAG_namespace ] [B] [line 1]
// CHECK: [[CTXT]] = {{.*}}, metadata [[FILE]], null, {{.*}} ; [ DW_TAG_namespace ] [A] [line 3]
// CHECK: [[FILE2]]} ; [ DW_TAG_file_type ] [{{.*}}foo.cpp]
+
+// FIXME: It is confused on win32 to generate file entry when dosish filename is given.
+// REQUIRES: shell