Add clarification comments.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@156350 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Commands/CommandObjectBreakpoint.cpp b/source/Commands/CommandObjectBreakpoint.cpp
index a3c2e18..625e472 100644
--- a/source/Commands/CommandObjectBreakpoint.cpp
+++ b/source/Commands/CommandObjectBreakpoint.cpp
@@ -74,6 +74,8 @@
 {
 }
 
+// If an additional option set beyond LLDB_OPTION_SET_10 is added, make sure to
+// update the numbers passed to LLDB_OPT_SET_FROM_TO(...) appropriately.
 #define LLDB_OPT_FILE ( LLDB_OPT_SET_FROM_TO(1, 9) & ~LLDB_OPT_SET_2 )
 #define LLDB_OPT_NOT_10 ( LLDB_OPT_SET_FROM_TO(1, 10) & ~LLDB_OPT_SET_10 )