Added a test case to fail if git posix paths are not turned into windows paths

aider/coders/base_coder.py

@@ -6,7 +6,7 @@ import os
 import sys
 import traceback
 from json.decoder import JSONDecodeError
-from pathlib import Path
+from pathlib import Path, PurePosixPath
 
 import backoff
 import git
@@ -248,17 +248,10 @@ class Coder:
         self.repo = git.Repo(repo_paths.pop(), odbt=git.GitDB)
 
         self.root = os.path.abspath(self.repo.working_tree_dir)
-        if self.verbose:
-            dump(self.repo)
-            dump(self.root)
-            dump(os.getcwd())
 
         new_files = []
         for fname in self.abs_fnames:
             relative_fname = self.get_rel_fname(fname)
-            if self.verbose:
-                dump(fname)
-                dump(relative_fname)
 
             tracked_files = set(self.get_tracked_files())
             if relative_fname not in tracked_files:
@@ -962,6 +955,7 @@ class Coder:
     def get_tracked_files(self):
         # convert to appropriate os.sep, since git always normalizes to /
         files = set(self.repo.git.ls_files().splitlines())
+        # return files
         if os.sep == "/":
             return files
         return set(path.replace("/", os.sep) for path in files)