test: adds a snapshot test to demonstrate the issue

Arrays of objects create definitions for all object keys contained

Author: Christoph

snapshots/input/pure-js/src/main.js

@@ -47,3 +47,7 @@ function var_function_scope() {
   }
   print_fib(k)
 }
+
+function array_of_objects() {
+  [{ element: 0 }, { element: 1}]
+}

snapshots/output/pure-js/src/main.js

@@ -97,3 +97,10 @@ function var_function_scope() {
 //          ^ reference local 17
 }
 
+function array_of_objects() {
+//       ^^^^^^^^^^^^^^^^ definition pure-js 1.0.0 src/`main.js`/array_of_objects().
+  [{ element: 0 }, { element: 1}]
+//   ^^^^^^^ definition pure-js 1.0.0 src/`main.js`/element0:
+//                   ^^^^^^^ definition pure-js 1.0.0 src/`main.js`/element1:
+}
+