cpp: revert two cpp dataflow deprecations that take more work

Author: erik-krogh

cpp/ql/lib/semmle/code/cpp/dataflow/DataFlow.qll

@@ -18,3 +18,16 @@
  */
 
 import cpp
+
+/**
+ * DEPRECATED: Use `semmle.code.cpp.dataflow.new.DataFlow` instead.
+ *
+ * Provides classes for performing local (intra-procedural) and
+ * global (inter-procedural) data flow analyses.
+ */
+deprecated module DataFlow {
+  private import semmle.code.cpp.dataflow.internal.DataFlowImplSpecific
+  private import codeql.dataflow.DataFlow
+  import DataFlowMake<Location, CppOldDataFlow>
+  import Public
+}

cpp/ql/lib/semmle/code/cpp/dataflow/TaintTracking.qll

@@ -16,3 +16,17 @@
  */
 
 import semmle.code.cpp.dataflow.DataFlow
+
+/**
+ * DEPRECATED: Use `semmle.code.cpp.dataflow.new.TaintTracking` instead.
+ *
+ * Provides classes for performing local (intra-procedural) and
+ * global (inter-procedural) taint-tracking analyses.
+ */
+deprecated module TaintTracking {
+  import semmle.code.cpp.dataflow.internal.TaintTrackingUtil
+  private import semmle.code.cpp.dataflow.internal.DataFlowImplSpecific
+  private import semmle.code.cpp.dataflow.internal.TaintTrackingImplSpecific
+  private import codeql.dataflow.TaintTracking
+  import TaintFlowMake<Location, CppOldDataFlow, CppOldTaintTracking>
+}