Prevent repl from inserting inferred 'Sort's into context #1318
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To type-check and evaluate inputs in the context of previous
inputs, the repl constructs a let-expression that includes
the previous input and variable assignments as bindings.
Previously these bindings would also be annotated with
inferred types. For example a session like
would be represented as
However
Sort
does not typecheck as an annotation of a let-binding,resulting in the confusing message
Constructing the let-bindings without the type annotations fixes the
problem.
Fixes #1193.