JS: mark globalFlowPred as internal

Author: asger-semmle

javascript/ql/src/semmle/javascript/dataflow/TypeInference.qll

@@ -48,6 +48,8 @@ class AnalyzedNode extends DataFlow::Node {
   AnalyzedNode localFlowPred() { result = getAPredecessor() }
 
   /**
+   * INTERNAL. DO NOT USE.
+   *
    * Gets another data flow node whose value flows into this node in a global step
    * (this is, involving global variables).
    */