[IR] Support function references

Signed-off-by: Evgeniy.Zhelenskiy <Evgeniy.Zhelenskiy@jetbrains.com>

#KT-1179

compiler/testData/codegen/box/valueClasses/functionReferences.kt

@@ -0,0 +1,33 @@
+// CHECK_BYTECODE_LISTING
+// WITH_STDLIB
+// TARGET_BACKEND: JVM_IR
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses
+
+@JvmInline
+value class DPoint(val x: Double, val y: Double) {
+    fun f(z: Double) = x + y + z
+}
+
+fun g(point: DPoint, z: Double) = point.f(z)
+
+class A(val point: DPoint) {
+    fun f(otherDPoint: DPoint, z: Double) = point.f(z) * otherDPoint.f(z)
+}
+
+fun box(): String {
+    val dPoint = DPoint(1.0, 2.0)
+    val a = A(dPoint)
+    
+    require((::DPoint)(1.0, 2.0) == dPoint)
+    require((dPoint::f)(3.0) == 6.0)
+    require((::g)(dPoint, 3.0) == 6.0)
+    require((a::f)(dPoint, 3.0) == 36.0)
+    
+    require((::DPoint)(1.0, DPoint(1.0, 2.0).y) == dPoint)
+    require((dPoint::f)(DPoint(1.0, 3.0).y) == 6.0)
+    require((::g)(dPoint, DPoint(1.0, 3.0).y) == 6.0)
+    require((a::f)(dPoint, DPoint(1.0, 3.0).y) == 36.0)
+    
+    return "OK"
+}