Fixes bug in local declarations lowering + test

backend.native/tests/codegen/localClass/tryCatch.kt

@@ -0,0 +1,16 @@
+private fun foo() {
+    val local =
+            object {
+                fun bar() {
+                    try {
+                    } catch (t: Throwable) {
+                        println(t)
+                    }
+                }
+            }
+    local.bar()
+}
+
+fun main(args: Array<String>) {
+    foo()
+}