JS: Add reproduction test

Author: asgerf

javascript/ql/test/library-tests/TypeScript/RegressionTests/CyclicAlias/test.d.ts

@@ -0,0 +1,5 @@
+import Foo = Foo.Bar;
+
+declare namespace Foo {
+    var Bar: {};
+}

javascript/ql/test/library-tests/TypeScript/RegressionTests/CyclicAlias/test.ql

@@ -0,0 +1,2 @@
+// Just check that extraction succeeds
+select "Success"

javascript/ql/test/library-tests/TypeScript/RegressionTests/CyclicAlias/tsconfig.json

@@ -0,0 +1,3 @@
+{
+    "include": ["."]
+}