Java/C++/C#: Address review comment.

Author: aschackmull

cpp/ql/src/semmle/code/cpp/dataflow/internal/DataFlowUtil.qll

@@ -345,7 +345,7 @@ class BarrierGuard extends Expr {
   /** NOT YET SUPPORTED. Holds if this guard validates `e` upon evaluating to `branch`. */
   abstract deprecated predicate checks(Expr e, boolean branch);
 
-  /** Gets a node guarded by this. */
+  /** Gets a node guarded by this guard. */
   final Node getAGuardedNode() {
     none() // stub
   }

cpp/ql/src/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll

@@ -181,7 +181,7 @@ class BarrierGuard extends IRGuardCondition {
   /** NOT YET SUPPORTED. Holds if this guard validates `e` upon evaluating to `b`. */
   abstract deprecated predicate checks(Instruction e, boolean b);
 
-  /** Gets a node guarded by this. */
+  /** Gets a node guarded by this guard. */
   final Node getAGuardedNode() {
     none() // stub
   }

csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowPublic.qll

@@ -177,7 +177,7 @@ class BarrierGuard extends Internal::Guard {
   /** NOT YET SUPPORTED. Holds if this guard validates `e` upon evaluating to `v`. */
   abstract deprecated predicate checks(Expr e, AbstractValue v);
 
-  /** Gets a node guarded by this. */
+  /** Gets a node guarded by this guard. */
   final Node getAGuardedNode() {
     none() // stub
   }

java/ql/src/semmle/code/java/dataflow/internal/DataFlowUtil.qll

@@ -431,7 +431,7 @@ class BarrierGuard extends Guard {
   /** Holds if this guard validates `e` upon evaluating to `branch`. */
   abstract predicate checks(Expr e, boolean branch);
 
-  /** Gets a node guarded by this. */
+  /** Gets a node guarded by this guard. */
   final Node getAGuardedNode() {
     exists(SsaVariable v, boolean branch, RValue use |
       this.checks(v.getAUse(), branch) and