C++: Add deprecated alias to RemoteFlowSourceFunction and LocalFlowSourceFunction.

Author: MathiasVP

cpp/ql/src/semmle/code/cpp/models/interfaces/FlowSource.qll

@@ -20,6 +20,13 @@ abstract class RemoteFlowSourceFunction extends Function {
   abstract predicate hasRemoteFlowSource(FunctionOutput output, string description);
 }
 
+/**
+ * DEPRECATED: Use `RemoteFlowSourceFunction` instead.
+ *
+ * A library function that returns data that may be read from a network connection.
+ */
+deprecated class RemoteFlowFunction = RemoteFlowSourceFunction;
+
 /**
  * A library function that returns data that is directly controlled by a user.
  */
@@ -30,6 +37,13 @@ abstract class LocalFlowSourceFunction extends Function {
   abstract predicate hasLocalFlowSource(FunctionOutput output, string description);
 }
 
+/**
+ * DEPRECATED: Use `LocalFlowSourceFunction` instead.
+ *
+ * A library function that returns data that is directly controlled by a user.
+ */
+deprecated class LocalFlowFunction = LocalFlowSourceFunction;
+
 /** A library function that sends data over a network connection. */
 abstract class RemoteFlowSinkFunction extends Function {
   /**