D-Programming-Language/phobos — pull request #2381 by tom-tan (2014-07-30 04:45:56+00:00)
Title: Mark std.file.getFileAttributesWin as trusted and makeUlong as safe pure nothrow nogc

`getFileAttributesWin` includes a system function `core.sys.windows.GetFileAttributesExW` but we can verify it can be trusted.
`makeUlong` does not throw exceptions and does not contain any unsafe, impure, gc-related operations.