JVM_IR KT-45103 optimize direct invoke for lambdas and callable refs

compiler/testData/codegen/box/directInvokeOptimization/nestedLambdas.kt

@@ -0,0 +1,12 @@
+// CHECK_BYTECODE_TEXT
+// JVM_IR_TEMPLATES
+// 0 Function(^.)*.invoke
+
+fun box() =
+    { k: String ->
+        { o: String ->
+            var ok = o
+            ok += k
+            ok
+        }("O")
+    }("K")