Fix initialization order of globals

tests/cases/globals/global_binding.60

@@ -18,6 +18,7 @@ TestCase := Rectangle {
     callback set_a(int);
     set_a(a) => { Glob.a = a; }
     property <int> value1: Glob.b;
+    property <bool> test: value1 == 3+3;
 }
 
 /*

tests/cases/globals/global_binding_const.60

@@ -0,0 +1,48 @@
+/* LICENSE BEGIN
+    This file is part of the SixtyFPS Project -- https://sixtyfps.io
+    Copyright (c) 2020 Olivier Goffart <olivier.goffart@sixtyfps.io>
+    Copyright (c) 2020 Simon Hausmann <simon.hausmann@sixtyfps.io>
+
+    SPDX-License-Identifier: GPL-3.0-only
+    This file is also available under commercial licensing terms.
+    Please contact info@sixtyfps.io for more information.
+LICENSE END */
+
+// This tests that constant property from global are properly initialized
+
+global Glob := {
+    property <int> a: 3;
+    property <int> b: a + 3;
+}
+
+global Glob2 := {
+    property <int> a: other;
+    property <int> other: 5;
+}
+
+TestCase := Rectangle {
+    r := Rectangle {
+        property <int> value1: Glob.b;
+        property <int> value2: true ? Glob2.a : 88;
+    }
+    property <bool> test: r.value1 + r.value2 == 3+3 +5;
+}
+
+/*
+```rust
+let instance = TestCase::new();
+assert!(instance.get_test());
+```
+
+```cpp
+auto handle = TestCase::create();
+const TestCase &instance = *handle;
+assert(instance.get_test());
+```
+
+```js
+let instance = new sixtyfps.TestCase({});
+assert(instance.test);
+```
+
+*/