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	 1b3164f5c9
			
		
	
	
		1b3164f5c9
		
	
	
	
	
		
			
			Add `StructurallyRelateAliases` to allow instantiating infer vars with rigid aliases. Change `instantiate_query_response` to be infallible in the new solver. This requires canonicalization to not hide any information used by the query, so weaken universe compression. It also modifies `term_is_fully_unconstrained` to allow region inference variables in a higher universe.