Local objects (#215)

* bug fix

* bug fix with nested inner classes

* - fixed FixMeInner
- support of inner classes in local classes
- support of object expressions in initializers

* comments

* merged modification

* - review fixes
- tests

* review fixes

* review fixes

backend.native/tests/codegen/innerClass/superOuter.kt

@@ -0,0 +1,13 @@
+open class Outer(val outer: String) {
+    open inner class Inner(val inner: String): Outer(inner) {
+        fun foo() = outer
+    }
+
+    fun value() = Inner("OK").foo()
+}
+
+fun box() = Outer("Fail").value()
+
+fun main(args : Array<String>) {
+    println(box())
+}