Fixed bug in finally blocks lowering + test

Return type must be taken from the function

backend.native/tests/build.gradle

@@ -1893,6 +1893,11 @@ task finally11(type: RunKonanTest) {
     source = "codegen/try/finally11.kt"
 }
 
+task finally_returnsDifferentTypes(type: RunKonanTest) {
+    goldValue = "zzz\n42\n"
+    source = "codegen/try/returnsDifferentTypes.kt"
+}
+
 task scope1(type: RunKonanTest) {
     goldValue = "1\n"
     source = "codegen/dataflow/scope1.kt"

backend.native/tests/codegen/try/returnsDifferentTypes.kt

@@ -0,0 +1,28 @@
+package codegen.`try`.returnsDifferentTypes
+
+import kotlin.test.*
+
+class ReceiveChannel<out E>
+
+inline fun <E, R> ReceiveChannel<E>.consume(block: ReceiveChannel<E>.() -> R): R {
+    try {
+        return block()
+    }
+    finally {
+        println("zzz")
+    }
+}
+
+inline fun <E> ReceiveChannel<E>.elementAtOrElse(index: Int, defaultValue: (Int) -> E): E =
+        consume {
+            if (index < 0)
+                return defaultValue(index)
+            return 42 as E
+        }
+
+fun <E> ReceiveChannel<E>.elementAt(index: Int): E =
+        elementAtOrElse(index) { throw IndexOutOfBoundsException("qxx") }
+
+@Test fun runTest() {
+    println(ReceiveChannel<Int>().elementAt(0))
+}