Extract some codegen tests to black box testData

compiler/testData/codegen/box/casts/as.kt

@@ -0,0 +1,8 @@
+fun foo(x: Any) = x as Runnable
+
+fun box(): String {
+	val r = object : Runnable {
+		override fun run() {}
+	}
+	return if (foo(r) identityEquals r) "OK" else "Fail"
+}

compiler/testData/codegen/box/casts/asSafe.kt

@@ -0,0 +1,8 @@
+fun foo(x: Any) = x as? Runnable
+
+fun box(): String {
+	val r = object : Runnable {
+		override fun run() {}
+	}
+	return if (foo(r) identityEquals r) "OK" else "Fail"
+}

compiler/testData/codegen/box/casts/is.kt

@@ -0,0 +1,8 @@
+fun foo(x: Any) = x is Runnable
+
+fun box(): String {
+	val r = object : Runnable {
+		override fun run() {}
+	}
+	return if (foo(r) && !foo(42)) "OK" else "Fail"
+}

compiler/testData/codegen/box/casts/notIs.kt

@@ -0,0 +1,8 @@
+fun foo(x: Any) = x !is Runnable
+
+fun box(): String {
+	val r = object : Runnable {
+		override fun run() {}
+	}
+	return if (!foo(r) && foo(42)) "OK" else "Fail"
+}

compiler/testData/codegen/box/extensionFunctions/simple.kt

@@ -0,0 +1,5 @@
+fun StringBuilder.first() = this.charAt(0)
+
+fun foo() = StringBuilder("foo").first()
+
+fun box() = if (foo() == 'f') "OK" else "Fail ${foo()}"

compiler/testData/codegen/box/extensionFunctions/whenFail.kt

@@ -0,0 +1,24 @@
+fun StringBuilder.takeFirst(): Char {
+  if (this.length() == 0) return 0.toChar()
+  val c = this.charAt(0)
+  this.deleteCharAt(0)
+  return c
+}
+
+fun foo(expr: StringBuilder): Int {
+  val c = expr.takeFirst()
+  when(c) {
+    0.toChar() -> throw Exception("zero")
+    else -> throw Exception("nonzero" + c)
+  }
+}
+
+fun box(): String {
+  try {
+    foo(StringBuilder())
+    return "Fail"
+  }
+  catch (e: Exception) {
+    return "OK"
+  }
+}

compiler/testData/codegen/box/primitiveTypes/kt828.kt

@@ -0,0 +1,15 @@
+package demo
+
+fun box() : String {
+    var res : Boolean = true
+    res = (res and false)
+    res = (res or false)
+    res = (res xor false)
+    res = (true and false)
+    res = (true or false)
+    res = (true xor false)
+    res = (!true)
+    res = (true && false)
+    res = (true || false)
+    return "OK"
+}

compiler/testData/codegen/box/ranges/kt2596.kt

@@ -0,0 +1,7 @@
+fun box(): String {
+    val iterator: Iterator<Int> = (0..0).iterator()
+    for (i in iterator) {
+        return "OK"
+    }
+    return "fail"
+}