add API-graph test for the new tagged template calls

Author: erik-krogh

javascript/ql/test/ApiGraphs/tagged-template/VerifyAssertions.expected

@@ -0,0 +1 @@
+import ApiGraphs.VerifyAssertions

javascript/ql/test/ApiGraphs/tagged-template/VerifyAssertions.ql

@@ -0,0 +1,9 @@
+const tag = require("tag");
+
+tag.string`string1
+${23}` // def=moduleImport("tag").getMember("exports").getMember("string").getParameter(1)
+
+tag.highlight`string2
+${23}
+morestring
+${42}` // def=moduleImport("tag").getMember("exports").getMember("highlight").getParameter(2)

javascript/ql/test/ApiGraphs/tagged-template/index.js

@@ -0,0 +1,3 @@
+{
+    "name": "tagged-template"
+}