Use new pre/postcondition syntax #536
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Replace `requires a ** b` with: requires a requires b This uses the new syntax that allows multiple requires clauses instead of combining preconditions with the ** operator. Updated 113+ files across lib/, share/pulse/examples/, and test/.
Replace `preserves a ** b` and `ensures a ** b` with: preserves a preserves b and: ensures a ensures b This uses the new syntax that allows multiple preserves/ensures clauses instead of combining postconditions with the ** operator. Note: Clauses starting with `exists*` are preserved as-is since the bound variables may be used in subsequent parts of the clause.
…lauses These clauses are redundant since emp (the empty separation logic proposition) is the identity for the ** operator and adds no preconditions or postconditions.
When a function has both `requires p` and `ensures p` for the same predicate p (on single complete lines), replace them with `preserves p`. This is a conservative transformation that only applies to simple single-line clauses where the predicate text matches exactly.
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