walnuthq/dpm-trace: tests/fixtures/source-pkg/FailureDemo.daml

Daml contract source - walnuthq/dpm-trace/tests/fixtures/source-pkg/FailureDemo.daml ```daml module FailureDemo where import Daml.Script template GuardedAccount with owner : Party balance : Int where signatory owner choice Withdraw : ContractId GuardedAccount with amount : Int controller owner do if