JS: Add library for exporting graphs as type models

javascript/ql/test/library-tests/ModelGeneration/ModelGeneration.expected

@@ -1,4 +1,11 @@
 typeModel
+| (aliases).Alias1 | aliases | Member[Alias1] |
+| (aliases).Alias1 | aliases | Member[Alias2] |
+| (aliases).Alias1 | aliases | Member[Alias3].Member[x] |
+| (aliases).Alias1 | aliases | Member[Alias4].Member[x].Member[x] |
+| (aliases).Alias1 | aliases | Member[AliasedClass] |
+| (aliases).Alias1.prototype | (aliases).Alias1 | Instance |
+| (aliases).Alias1.prototype.foo | (aliases).Alias1.prototype | Member[foo] |
 | (reexport).func | reexport | Member[func] |
 | (return-this).FluentInterface | return-this | Member[FluentInterface] |
 | (return-this).FluentInterface.prototype | (return-this).FluentInterface | Instance |
@@ -14,6 +21,7 @@ typeModel
 | upstream-lib.XYZ | reexport | Member[x].Member[y].Member[z] |
 | upstream-lib.XYZ | reexport | Member[xy].Member[z] |
 summaryModel
+| (aliases).Alias1.prototype |  |  | Member[foo].ReturnValue | type |
 | (return-this).FluentInterface.prototype |  |  | Member[bar].ReturnValue | type |
 | (return-this).FluentInterface.prototype |  |  | Member[baz].ReturnValue | type |
 | (return-this).FluentInterface.prototype |  |  | Member[foo].ReturnValue | type |

javascript/ql/test/library-tests/ModelGeneration/aliases/aliases.js

@@ -0,0 +1,9 @@
+export class AliasedClass {
+    foo() { return this; }
+}
+
+export const Alias1 = AliasedClass;
+export const Alias2 = AliasedClass;
+
+export const Alias3 = { x: AliasedClass };
+export const Alias4 = { x: Alias3 };

javascript/ql/test/library-tests/ModelGeneration/aliases/package.json

@@ -0,0 +1,4 @@
+{
+    "name": "aliases",
+    "main": "aliases.js"
+}