Fix detection of erased this for inline class

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

@@ -0,0 +1,17 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Props(val intArray: IntArray) {
+    val size get() = intArray.size
+
+    fun foo(): Int {
+        val a = size
+        return a
+    }
+}
+
+fun box(): String {
+    val f = Props(intArrayOf(1, 2, 3))
+    if (f.foo() != 3) return "fail"
+
+    return "OK"
+}