[PR 95182] ICE with EOF in macro args

[Nathan Sidwell]

This was another latent case of us losing an EOF token, but succeeding 
anyway.  Since my patch to make us pay more attention to EOFs it came to 
light.  We also need to keep the EOF if we fall off the end of the main 
file.  Forced includes look like regular nested includes at this point.

pushed to trunk

nathan
-- 
Nathan Sidwell
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