Fix usage of AllocVal in ForwardQueries when propagating their facts #155
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The forward and backward solver expect the propagated fact (i.e. the
var()of a query) to be not an instance of the classAllocVal. However, in very specific situations, Boomerang creates generating states for theAllocValbecause it is returned fromvar()in forward queries.Solution
Pass the delegate val from the
AllocValto the query object and treat theAllocValas new field