Revert manual magic

This appeared to cause a DCA timeout.

Author: joefarebrother

python/ql/src/Resources/FileNotAlwaysClosedQuery.qll

@@ -91,7 +91,7 @@ private predicate fileLocalFlowStep(DataFlow::Node nodeFrom, DataFlow::Node node
 }
 
 /** Holds if data flows from `source` to `sink`, including file wrapper classes. */
-private predicate fileLocalFlow(FileOpen source, DataFlow::Node sink) {
+private predicate fileLocalFlow(DataFlow::Node source, DataFlow::Node sink) {
   fileLocalFlowStep*(source, sink)
 }
 

python/ql/src/Variables/LoopVariableCapture.ql

@@ -18,6 +18,10 @@ Scope iteration_variable_scope(AstNode loop) {
   result = loop.(Comp).getFunction()
 }
 
+abstract class Loop extends AstNode {
+  abstract Variable getALoopVariable();
+}
+
 predicate capturing_looping_construct(CallableExpr capturing, AstNode loop, Variable var) {
   var.getScope() = iteration_variable_scope(loop) and
   var.getAnAccess().getScope() = capturing.getInnerScope() and