Revision f89d06d13b0bb35b638264153f46da32a3ac8ee2

Identify input labels that do not match package names

Look for formatting issues in the source

Validate package descriptions

Identify inputs that should be native inputs

Validate file names and availability of patches

Validate package synopses

Make sure tests are only run when requested

Make sure 'wrap-program' can finds its interpreter.

Check that cross-compilers are used when cross-compiling

Validate patch headers

Report collisions that would occur due to propagated inputs

Check for autogenerated tarballs

Identify inputs that shouldn't be inputs at all

Validate file names of sources

Suggest 'mirror://' URLs

Validate package names

Check if tests are explicitly enabled