[FS] Treat ERROR_PATH_NOT_FOUND in Win32Handler as file does not exist

If it is attempted to fetch the file-info of a file, whose parent
directory does not exist the error code is ERROR_PATH_NOT_FOUND instead
of ERROR_FILE_NOT_FOUND. The latter is only returned if a file does not
exist in an existing parent directory.

Therefore in case of ERROR_FILE_NOT_FOUND the file should just be
treated as not existing without setting an IO_ERROR.

The JDK's java.nio file-system implementation for Windows also considers
a file as absent (i.e. throws a NoSuchFileException) for both error
codes ERROR_FILE_NOT_FOUND and ERROR_PATH_NOT_FOUND.

Author: HannesWell

resources/bundles/org.eclipse.core.filesystem/src/org/eclipse/core/internal/filesystem/local/Win32Handler.java

@@ -68,7 +68,8 @@ public FileInfo fetchFileInfo(String fileName) {
 			long handle = FileAPIh.FindFirstFileW(new WString(target), mem);
 			if (handle == FileAPIh.INVALID_HANDLE_VALUE) {
 				int error = Native.getLastError();
-				if (error != WinError.ERROR_FILE_NOT_FOUND) {
+				if (!(error == WinError.ERROR_FILE_NOT_FOUND // file not found in existing parent directory
+						|| error == WinError.ERROR_PATH_NOT_FOUND)) { // Not even the parent directory exists
 					fileInfo.setError(IFileInfo.IO_ERROR);
 				}
 				return fileInfo;