Bug fix in determining whether a type parameter is bounded

When checking whether a type parameter could be determined from the
bound variable types, we mistakenly compare equality between a
TypeVarable and a VCExprVar, instead of between two VCExprVars.

1 files changed, 1 insertions, 1 deletions

diff --git a/Source/VCExpr/TypeErasurePremisses.cs b/Source/VCExpr/TypeErasurePremisses.cs
index 6077f327..dc9ad10f 100644
--- a/Source/VCExpr/TypeErasurePremisses.cs
+++ b/Source/VCExpr/TypeErasurePremisses.cs
@@ -1115,7 +1115,7 @@ namespace Microsoft.Boogie.TypeErasure
       if (typeVarBindings.Count < node.TypeParameters.Count) {
         foreach (TypeVariable/*!*/ var in node.TypeParameters) {
           Contract.Assert(var != null);
-          if (typeVarBindings.All(b => !b.V.Equals(var)))
+          if (typeVarBindings.All(b => !b.V.Equals(bindings.TypeVariableBindings[var])))
             newBoundVars.Add((VCExprVar)bindings.TypeVariableBindings[var]);
         }
       }