JVM IR: Fix handling of anonymous initializers in inline classes (#4372)

Fixes KT-46554

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

@@ -0,0 +1,16 @@
+var result = "Fail"
+
+inline class A(val value: String) {
+    fun f() = value + "K"
+}
+
+class B(val a: A) {
+    val result: String
+    init {
+        result = a.f()
+    }
+}
+
+fun box(): String {
+    return B(A("O")).result
+}