Java: Move file.

Author: aschackmull

java/ql/lib/semmle/code/java/dataflow/internal/DataFlowDispatch.qll

@@ -4,7 +4,7 @@ private import DataFlowUtil
 private import semmle.code.java.dataflow.InstanceAccess
 private import semmle.code.java.dataflow.FlowSummary
 private import semmle.code.java.dispatch.VirtualDispatch as VirtualDispatch
-private import semmle.code.java.dispatch.Unification
+private import semmle.code.java.dispatch.internal.Unification
 
 private module DispatchImpl {
   /** Gets a viable implementation of the target of the given `Call`. */

java/ql/lib/semmle/code/java/dispatch/ObjFlow.qll

@@ -15,7 +15,7 @@ private import semmle.code.java.dataflow.internal.DataFlowUtil
 private import semmle.code.java.dataflow.internal.DataFlowPrivate
 private import semmle.code.java.dataflow.internal.ContainerFlow
 private import semmle.code.java.dataflow.InstanceAccess
-private import semmle.code.java.dispatch.Unification
+private import semmle.code.java.dispatch.internal.Unification
 
 /**
  * Gets a viable dispatch target for `ma`. This is the input dispatch relation.

java/ql/lib/semmle/code/java/dispatch/VirtualDispatch.qll

@@ -9,7 +9,7 @@ private import DispatchFlow as DispatchFlow
 private import ObjFlow as ObjFlow
 private import semmle.code.java.dataflow.internal.BaseSSA
 private import semmle.code.java.controlflow.Guards
-private import semmle.code.java.dispatch.Unification
+private import semmle.code.java.dispatch.internal.Unification
 
 /**
  * A conservative analysis that returns a single method - if we can establish