Make taint tracking tests use config from InlineFlowTest

Author: owen-mc

go/ql/test/library-tests/semmle/go/dataflow/HiddenNodes/test.expected

@@ -1,3 +1,4 @@
+failures
 edges
 | test.go:14:8:14:15 | call to source | test.go:15:34:15:35 | fi |
 | test.go:15:2:15:44 | ... := ...[0] | test.go:16:7:16:12 | header |

go/ql/test/library-tests/semmle/go/dataflow/HiddenNodes/test.ql

@@ -1,22 +1,10 @@
-/**
- * @kind path-problem
- */
-
 import go
-import DataFlow::PathGraph
-
-class Config extends TaintTracking::Configuration {
-  Config() { this = "config" }
+import TestUtilities.InlineFlowTest
 
-  override predicate isSource(DataFlow::Node n) {
-    n = any(DataFlow::CallNode call | call.getTarget().getName() = "source").getResult()
-  }
+module Flow = TaintTracking::Global<DefaultFlowConfig>;
 
-  override predicate isSink(DataFlow::Node n) {
-    n = any(DataFlow::CallNode call | call.getTarget().getName() = "sink").getAnArgument()
-  }
-}
+import Flow::PathGraph
 
-from DataFlow::PathNode source, DataFlow::PathNode sink, Config c
-where c.hasFlowPath(source, sink)
+from Flow::PathNode source, Flow::PathNode sink
+where Flow::flowPath(source, sink)
 select source, source, sink, "Path"