Predicate parameterDefUsePair
Holds if there exists a path from the entry-point of the callable to use
without
passing through a VariableUpdate
of the parameter p
that use
refers to.
Other paths may also exist, so the SSA variables can be different.
Import path
import semmle.code.java.dataflow.DefUse
predicate parameterDefUsePair(Parameter p, VarRead use)