Improve object init order. (#187)

backend.native/tests/build.gradle

@@ -834,6 +834,11 @@ task initializers4(type: RunKonanTest) {
     source = "runtime/basic/initializers4.kt"
 }
 
+task initializers5(type: RunKonanTest) {
+    goldValue = "42\n"
+    source = "runtime/basic/initializers5.kt"
+}
+
 task expression_as_statement(type: RunKonanTest) {
     goldValue = "Ok\n"
     source = "codegen/basics/expression_as_statement.kt"

backend.native/tests/runtime/basic/initializers5.kt

@@ -0,0 +1,8 @@
+object A {
+    val a = 42
+    val b = A.a
+}
+
+fun main(args : Array<String>) {
+    println(A.b)
+}

runtime/src/main/cpp/Memory.cpp

@@ -440,9 +440,9 @@ OBJ_GETTER(InitInstance,
 
   AllocInstance(type_info, hint, OBJ_RESULT);
   ObjHeader* object = *OBJ_RESULT;
+  UpdateGlobalRef(location, object);
   try {
     ctor(object);
-    UpdateGlobalRef(location, object);
 #if CONCURRENT
     // TODO: locking or smth lock-free in MT case?
 #endif