JS: Add InlineFlowTest

javascript/ql/test/testUtilities/InlineFlowTestUtil.qll

@@ -0,0 +1,21 @@
+/**
+ * Defines the default source and sink recognition for `InlineFlowTest.qll`.
+ *
+ * We reuse these predicates in some type-tracking tests that don't wish to bring in the
+ * test configuration from `InlineFlowTest`.
+ */
+
+private import javascript
+
+predicate defaultSource(DataFlow::Node src) { src.(DataFlow::CallNode).getCalleeName() = "source" }
+
+predicate defaultSink(DataFlow::Node sink) {
+  exists(DataFlow::CallNode call | call.getCalleeName() = "sink" | sink = call.getAnArgument())
+}
+
+bindingset[src]
+string getSourceArgString(DataFlow::Node src) {
+  src.(DataFlow::CallNode).getAnArgument().getStringValue() = result
+  or
+  src.(DataFlow::ParameterNode).getName() = result
+}