JS: when resolving temporary functions, don't rely on JsScope hierarchy, build this hierarchy instead, based on scoping rules for function, var, etc expressions

js/js.translator/testData/js-name-resolution/globalName.expected.js

@@ -0,0 +1,10 @@
+var x_0 = 23;
+var x_1 = 42;
+
+function foo() {
+    println(x_0);
+}
+
+function bar() {
+    println(x + x_1);
+}