[Tests] Migrate backend-independent tests from native to compiler/testData.

^KT-65979

compiler/testData/codegen/box/boxing/kt53100_casts.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+// KT-54635: expected:<[OK]> but was:<[FAIL 1: 0]>
+// IGNORE_BACKEND: JS_IR, JS_IR_ES6
+// KT-66099: CompileError: WebAssembly.Module(): Compiling function #3415:"box" failed: Invalid types for ref.cast null: local.get of type f64 has to be in the same reference type hierarchy as (ref 686) @+237036
+// IGNORE_BACKEND: WASM
+// WITH_STDLIB
+
+import kotlin.test.*
+
+// Reproducer is copied from FloatingPointParser.unaryMinus()
+inline fun <reified T> unaryMinus(value: T): T {
+    return when (value) {
+        is Float -> -value as T
+        is Double -> -value as T
+        else -> throw NumberFormatException()
+    }
+}
+
+fun box(): String {
+    val res1 = unaryMinus(0.0).toString()
+    if (res1 != "-0.0") return "FAIL 1: $res1"
+
+    val res2 = unaryMinus(0.0f).toString()
+    if (res2 != "-0.0") return "FAIL 2: $res2"
+
+    return "OK"
+}