Retain inline-pragma information on unfoldings in interface files
WARNING: this patch changes interface-file formats slightly you will need to recompile your libraries Duncan Coutts wanted to export a function that has a NOINLNE pragma in a local let-defintion. This works fine within a module, but was not surviving across the interface-file serialisation. http://www.haskell.org/pipermail/glasgow-haskell-users/2007-March/012171.html Regardless of whether or not he's doing something sensible, it seems reasonable to try to retain local-binder IdInfo across interface files. This initial patch just retains inline-pragma info, on the grounds that other IdInfo can be re-inferred at the inline site. Interface files get a tiny bit bigger, but it seesm slight.
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