Not appending "." to names of record fields in counterexamples.
Previously, "." was automatically appended to names stored in model_trace label when creating variables corresponding to record fields in eval_match and when projecting record fields in the transformation intro_projections_counterexmp. Now, this is not done and "." must be given in model_trace label of the projection or record field. The reason is that for SPARK, character different from "." (e.g., "'" needs to be sometimes appended.
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