largefiles: use `hacky_extension_update_file` in `updatelfiles` This is what the function is meant for.

largefiles: use `hacky_extension_update_file` in `synclfdirstate` This is what the function is meant for.

largefiles: use `hacky_extension_update_file` in `openlfdirstate` This is what the function is meant for.

win32text: make the hacky call cover more cases Now that I understand what this is doing, It seems like the case for `p1_tracked` were covered by neither the code nor the test. Now the code cover it at least.