Don't ICE in layout computation for placeholder types #111490
Merged
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We use
layout_of
for the built-inPointerLike
trait to check if a type can be coerced to adyn*
.Since the new solver canonicalizes parameter types to placeholders, that code needs to be able to treat placeholders like params, and for the most part it does, except for a call to
is_trivially_sized
. This PR fixes that.