Update syntax_match.py

syntax_match.py

@@ -1,7 +1,7 @@
 # Copyright (c) Microsoft Corporation. 
 # Licensed under the MIT license.
 
-from parser.DFG import DFG_python,DFG_java,DFG_ruby,DFG_go,DFG_php,DFG_javascript,DFG_csharp
+from .parser.DFG import DFG_python,DFG_java,DFG_ruby,DFG_go,DFG_php,DFG_javascript,DFG_csharp
 from parser import (remove_comments_and_docstrings,
                    tree_to_token_index,
                    index_to_code_token,