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Simon Peyton Jones authored
In poking Trac #11414 I found myself sinking into the abe_inst_wrap swamp. What is this strange thing? (It turned out that #11414 was breaking because of it.) Thrillingly, I found a way to sweep it away again, putting the deep instantation into tcMonoBinds instead of mkExport; and it turned out that the fun_co_fn field of FunBind was already there ready to receive exactly this wrapper. Hooray. Result * Death to abe_inst_wrap * Death to mbi_orig * Death to the plumbing in tcPolyInfer that did the deep instantiation I did find that I had to re-engineer the treatment of instance type signatures (again), but the result looks more modular and robust to me. And #11414 is fixed.
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