Merge pull request #173 from samarion/topic/adt-invariants

library/lang/Rational.scala

src/main/scala/leon/frontends/scalac/CodeExtraction.scala

src/main/scala/leon/purescala/CheckADTFieldsTypes.scala

src/main/scala/leon/purescala/Constructors.scala

src/main/scala/leon/purescala/DefOps.scala

src/main/scala/leon/purescala/Definitions.scala

src/main/scala/leon/purescala/Expressions.scala

src/main/scala/leon/purescala/MethodLifting.scala

src/main/scala/leon/purescala/Quantification.scala

src/main/scala/leon/purescala/Types.scala

...main/scala/leon/solvers/combinators/UnrollingSolver.scala

src/main/scala/leon/solvers/templates/DatatypeManager.scala

src/main/scala/leon/solvers/templates/LambdaManager.scala

.../scala/leon/solvers/templates/QuantificationManager.scala

...main/scala/leon/solvers/templates/TemplateGenerator.scala

src/main/scala/leon/solvers/templates/TemplateInfo.scala

src/main/scala/leon/solvers/templates/TemplateManager.scala

src/main/scala/leon/solvers/templates/UnrollingBank.scala

src/main/scala/leon/solvers/z3/AbstractZ3Solver.scala

src/main/scala/leon/termination/StructuralSize.scala