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

compiler/testData/codegen/box/closures/closureOnTopLevel2.kt

@@ -5,12 +5,14 @@
 // TODO: muted automatically, investigate should it be ran for JS or not
 // IGNORE_BACKEND: JS
 
-val p = { "OK" }()
+fun <T> eval(lambda: () -> T) = lambda()
+
+val p = eval { "OK" }
 
 val getter: String
-    get() = { "OK" }()
+    get() = eval { "OK" }
 
-fun f() = { "OK" }()
+fun f() = eval { "OK" }
 
 val obj = object : Function0<String> {
     override fun invoke() = "OK"