Add SMTLIB field-update support to AIR #1319
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AIR now exposes SMT2s field-update feature for updating the fields of a datatype.
Typechecking
field-updaterequires to distinguish between datatype accessors and other functions on structs. We have therefore equippedDeclaredX::Funwith a Boolean indicating whether the function is a datatype accessor.We plan to simplify the SST to AIR translation of struct field updates by using SMTLIB's
field-updatefeature.