KT-46267 JVM_IR don't generate unnecessary ATHROW in lateinit var read

compiler/testData/codegen/box/properties/lateinit/kt46267.kt

@@ -0,0 +1,18 @@
+// TARGET_BACKEND: JVM
+
+// CHECK_BYTECODE_TEXT
+// 0 ATHROW
+// -- invoking throwUninitializedPropertyAccessException is enough
+
+class Test {
+    private lateinit var z: String
+
+    fun test(): String {
+        z = "OK"
+        return z
+    }
+}
+
+fun box(): String {
+    return Test().test()
+}