Add a source file completer to the CommandCompleters.
Add a way for the completers to say whether the completed argument should have a space inserted after is
or not.
Added the file name completer to the "file" command.

llvm-svn: 107247
diff --git a/lldb/source/Commands/CommandObjectHelp.h b/lldb/source/Commands/CommandObjectHelp.h
index 881b67d..cf16e5d 100644
--- a/lldb/source/Commands/CommandObjectHelp.h
+++ b/lldb/source/Commands/CommandObjectHelp.h
@@ -43,6 +43,7 @@
                       int &cursor_char_position,
                       int match_start_point,
                       int max_return_elements,
+                      bool &word_complete,
                       StringList &matches);
 
 };