Support inline functions inside inline classes

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

@@ -0,0 +1,18 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Foo(val x: Int) {
+    inline fun inlineInc(): Foo = Foo(x + 1) // one actual call inside wrapper class Foo
+    fun notInlineInc(): Foo = Foo(x + 1)
+
+    fun foo() {
+        inlineInc()
+    }
+}
+
+fun test(f: Foo) {
+    f.inlineInc().inlineInc().inlineInc()
+    f.notInlineInc() // one here, one inside wrapper class Foo
+}
+
+// 1 INVOKESTATIC Foo\$Erased.inlineInc
+// 2 INVOKESTATIC Foo\$Erased.notInlineInc