[tree-ssa] Fix problem with loop notes emitted by targets

[Toon Moene]

Zdenek Dvorak wrote:

> we currently don't produce these notes at all on tree-ssa branch anyway,
> so it does not seem to be a big problem; especially since I hope to get
> rid of the whole loop.c soon.

Yessssss !!!!!

-- 
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
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