Added two more Javascript tests.

- `abstract_inherit`
- `char_strings`

Examples/test-suite/javascript/abstract_inherit_runme.js

@@ -0,0 +1,40 @@
+var abstract_inherit = require("./abstract_inherit");
+
+// Shouldn't be able to instantiate any of these classes
+// since none of them implements the pure virtual function
+// declared in the base class (Foo).
+var Foo = abstract_inherit.Foo;
+var Bar = abstract_inherit.Bar;
+var Spam = abstract_inherit.Spam;
+
+var caughtException = false;
+try {
+  new Foo();
+} catch (err) {
+  caughtException = true;
+}
+if (!caughtException) {
+  throw new Error("Foo should be instantiated as it is abstract");
+}
+
+caughtException = false;
+try {
+  new Bar();
+} catch (err) {
+  caughtException = true;
+}
+
+if (!caughtException) {
+  throw new Error("Bar should be instantiated as it is abstract");
+}
+
+caughtException = false;
+try {
+  new Spam();  
+} catch (err) {
+  caughtException = true;
+}
+
+if (!caughtException) {
+  throw new Error("Spam should be instantiated as it is abstract");
+}