Replace the diff parser imports with the modified path.

jedi/api/__init__.py

@@ -15,7 +15,7 @@ import sys
 
 from jedi.parser.python import load_grammar
 from jedi.parser.python import tree
-from jedi.parser.diff import FastParser
+from jedi.parser.python.diff import FastParser
 from jedi.parser.utils import save_parser
 from jedi import debug
 from jedi import settings

jedi/evaluate/compiled/mixed.py

@@ -6,7 +6,7 @@ import inspect
 import os
 
 from jedi import common
-from jedi.parser.diff import FastParser
+from jedi.parser.python.diff import FastParser
 from jedi.evaluate import compiled
 from jedi.cache import underscore_memoization
 from jedi.evaluate import imports

jedi/evaluate/imports.py

@@ -20,7 +20,7 @@ from jedi._compatibility import find_module, unicode, ImplicitNSInfo
 from jedi import debug
 from jedi import settings
 from jedi.common import source_to_unicode, unite
-from jedi.parser.diff import FastParser
+from jedi.parser.python.diff import FastParser
 from jedi.parser.python import tree
 from jedi.parser.utils import save_parser, load_parser, parser_cache
 from jedi.evaluate import sys_path

test/test_parser/test_diff_parser.py

@@ -7,7 +7,7 @@ from jedi import debug
 from jedi.common import splitlines
 from jedi import cache
 from jedi.parser.python import load_grammar
-from jedi.parser.diff import DiffParser
+from jedi.parser.python.diff import DiffParser
 from jedi.parser import ParserWithRecovery
 
 

test/test_parser/test_old_fast_parser.py

@@ -11,7 +11,7 @@ from textwrap import dedent
 import jedi
 from jedi._compatibility import u
 from jedi.parser.python import load_grammar
-from jedi.parser.diff import FastParser
+from jedi.parser.python.diff import FastParser
 from jedi.parser.utils import save_parser