Replace all occurences of getOrElseUpdate with manual update.

src/main/scala/inox/ast/Definitions.scala

src/main/scala/inox/ast/SymbolOps.scala

src/main/scala/inox/evaluators/SolvingEvaluator.scala

.../scala/inox/solvers/princess/AbstractPrincessSolver.scala

src/main/scala/inox/solvers/smtlib/SMTLIBTarget.scala

...main/scala/inox/solvers/unrolling/EqualityTemplates.scala

...main/scala/inox/solvers/unrolling/FunctionTemplates.scala

src/main/scala/inox/solvers/unrolling/LambdaTemplates.scala

src/main/scala/inox/solvers/unrolling/TypeTemplates.scala

src/main/scala/inox/solvers/z3/Z3Native.scala

src/main/scala/inox/tip/Printer.scala

src/main/scala/inox/transformers/SimplifierWithCNFPath.scala

src/main/scala/inox/utils/Timer.scala