[JS IR] Generate context dependent names for anonymous objects and classes.

js/js.translator/testData/box/closure/contextDependentClosureName.kt

@@ -0,0 +1,8 @@
+fun foo(a: () -> Unit) = a()
+
+// CHECK_CALLED_IN_SCOPE: scope=box function=box$lambda
+fun box(): String {
+    var result = "FAILURE"
+    foo { result = "OK" }
+    return result
+}