Add the ability to set breakpoints with conditions, commands, etc,
in the "dummy-target".  The dummy target breakpoints prime all future
targets.  Breakpoints set before any target is created (e.g. breakpoints
in ~/.lldbinit) automatically get set in the dummy target.  You can also
list, add & delete breakpoints from the dummy target using the "-D" flag,
which is supported by most of the breakpoint commands.

This removes a long-standing wart in lldb...

<rdar://problem/10881487>

llvm-svn: 223565
diff --git a/lldb/source/Commands/CommandCompletions.cpp b/lldb/source/Commands/CommandCompletions.cpp
index f0ad4a8..c65dd9d 100644
--- a/lldb/source/Commands/CommandCompletions.cpp
+++ b/lldb/source/Commands/CommandCompletions.cpp
@@ -112,7 +112,7 @@
     if (searcher == NULL)
     {
         lldb::TargetSP target_sp = interpreter.GetDebugger().GetSelectedTarget();
-        SearchFilter null_searcher (target_sp);
+        SearchFilterForUnconstrainedSearches null_searcher (target_sp);
         completer.DoCompletion (&null_searcher);
     }
     else
@@ -375,7 +375,7 @@
     if (searcher == NULL)
     {
         lldb::TargetSP target_sp = interpreter.GetDebugger().GetSelectedTarget();
-        SearchFilter null_searcher (target_sp);
+        SearchFilterForUnconstrainedSearches null_searcher (target_sp);
         completer.DoCompletion (&null_searcher);
     }
     else
@@ -406,7 +406,7 @@
     if (searcher == NULL)
     {
         lldb::TargetSP target_sp = interpreter.GetDebugger().GetSelectedTarget();
-        SearchFilter null_searcher (target_sp);
+        SearchFilterForUnconstrainedSearches null_searcher (target_sp);
         completer.DoCompletion (&null_searcher);
     }
     else