Skip call to the underlying value of inline class

compiler/testData/codegen/box/inlineClasses/referToUnderlyingPropertyInsideInlineClass.kt

@@ -0,0 +1,16 @@
+// !LANGUAGE: +InlineClasses
+
+inline class UInt(val value: Int) {
+    operator fun plus(other: UInt) = UInt(value + other.value)
+    fun otherValue(other: UInt) = other.value
+}
+
+fun box(): String {
+    val a = UInt(10)
+    val b = UInt(20)
+    if (a.otherValue(b) != 20) return "fail 1"
+
+    if ((a + b).value != 30) return "fail 2"
+
+    return "OK"
+}

compiler/testData/codegen/box/inlineClasses/referToUnderlyingPropertyOfInlineClass.kt

@@ -0,0 +1,16 @@
+// !LANGUAGE: +InlineClasses
+
+inline class UInt(val value: Int)
+
+fun box(): String {
+    val a = UInt(123)
+    if(a.value != 123) return "fail"
+
+    val c = a.value.hashCode()
+    if (c.hashCode() != 123.hashCode()) return "fail"
+
+    val b = UInt(100).value + a.value
+    if (b != 223) return "faile"
+
+    return "OK"
+}

compiler/testData/codegen/bytecodeText/inlineClasses/skipCallToUnderlyingValueOfInlineClass.kt

@@ -0,0 +1,17 @@
+// !LANGUAGE: +InlineClasses
+
+inline class UInt(val value: Int)
+
+fun test(u1: UInt, u2: UInt) {
+    val a = u1.value
+
+    val b = u1.value.hashCode() // box int to call hashCode
+    val c = u1.value + u2.value
+}
+
+// 0 INVOKESTATIC UInt\$Erased.getValue
+// 0 INVOKESTATIC UInt\$Erased.box
+// 0 INVOKEVIRTUAL UInt.unbox
+
+// 1 valueOf
+// 0 intValue