JVM_IR KT-45779 don't generate intrinsic method refs via invokedynamic

compiler/testData/codegen/box/invokedynamic/sam/functionRefToJavaInterface/intPlus.kt

@@ -0,0 +1,14 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND: ANDROID
+//  ^ uses API not implemented on minSdkVersion 19
+// WITH_RUNTIME
+// JVM_TARGET: 1.8
+// FULL_JDK
+
+fun box(): String {
+    val map = HashMap<String, Int>()
+    map["a"] = 1
+    map.merge("a", 2, Int::plus)
+    val t = map["a"]
+    return if (t == 3) "OK" else "failed: t=$t"
+}