Inner classes reference fails with pretty print

A class defines two inner classes:

` public static class ByReference extends WFSALMCAPS implements Structure.ByReference {}

public static class ByValue extends WFSALMCAPS implements Structure.ByValue {}`

If spoon processes with PRETTY_PRINTING_MODE.FULLYQUALIFIED the references to the inner classes are correct:

`public class WFSALMCAPS extends com.ardan1.xfs.Structure `

But if spoon processes with PRETTY_PRINTING_MODE.AUTOIMPORT the references to the inner classes are incomplete (it does not compile):

` public class WFSALMCAPS extends Structure`

It should be:

`public class WFSALMCAPS extends Structure`

Start by reproducing the reported WFSALMCAPS example with PRETTY_PRINTING_MODE.FULLYQUALIFIED and PRETTY_PRINTING_MODE.AUTOIMPORT, then trace the pretty-printing and import-resolution entry points. Done means AUTOIMPORT emits WFSALMCAPS.ByValue and WFSALMCAPS.ByReference so the generated Java source compiles.

Written by the indexing model from the issue text.