[K/N] Migrate most simple filecheck tests to new infra

^KT-62157


Merge-request: KT-MR-12376
Merged-by: Vladimir Sukharev <Vladimir.Sukharev@jetbrains.com>

compiler/testData/codegen/box/fileCheck/single_tls_load.kt

@@ -0,0 +1,29 @@
+// TARGET_BACKEND: NATIVE
+// FILECHECK_STAGE: OptimizeTLSDataLoads
+
+class Wrapper(x: Int)
+
+// CHECK-LABEL: define internal fastcc %struct.ObjHeader* @"kfun:#f(kotlin.Int;kotlin.String){}kotlin.String"
+fun f(x: Int, s: String): String {
+    // CHECK: _ZN6kotlin2mm14ThreadRegistry22currentThreadDataNode_E
+    // CHECK-NOT: _ZN6kotlin2mm14ThreadRegistry22currentThreadDataNode_E
+    if (x < 0) throw IllegalStateException()
+    if (x > 0) return f(x - 1, s)
+    val b = Wrapper(2)
+    val a = listOf(x, x, Wrapper(1), 2, x)
+    return buildString {
+        for (i in a) { appendLine("$s i") }
+    }
+// CHECK-LABEL: epilogue:
+}
+
+fun box(): String {
+    val result = f(10, "123456")
+    return if (result == "123456 i\n" +
+        "123456 i\n" +
+        "123456 i\n" +
+        "123456 i\n" +
+        "123456 i\n")
+        "OK"
+    else "FAIL: $result"
+}