model bucketing: special case for smithy.api#Unit #714
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In an edge case, the only model assigned to the last bucket may be
smithy.api#Unit
.This causes the code generator to think that
models_N
exists, but in fact onlymodels_(N-1)
exists becauseUnit
does not generate anything. This causes a compilation error in the generated models index.This proposed fix is to ignore
smithy.api#Unit
when incrementing the bucketing counter.testing
tested code generation against the edge case unreleased feature