Add KotlinType info about this inside inline class

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

@@ -0,0 +1,20 @@
+// !LANGUAGE: +InlineClasses
+
+inline class UInt(val a: Int) {
+    fun test() {
+        takeNullable(this) // box
+        takeAnyInside(this) // box
+
+        takeAnyInside(this.a) // box int
+    }
+
+    fun takeAnyInside(a: Any) {}
+}
+
+fun takeNullable(a: UInt?) {}
+
+// 2 INVOKESTATIC UInt\$Erased.box
+// 0 INVOKEVIRTUAL Foo.unbox
+
+// 1 valueOf
+// 0 intValue