tests for inlining between IR and AST functions

tests/compiler/dart2js_extra/ir_representation_test.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import '../dart2js_native/compiler_test_internals.dart';
+
+/**
+ * This test verifies that the @IrRepresentation annotation works as expected.
+ * It might fail when extending the IR to express more of Dart.
+ */
+
+// closure
+@IrRepresentation(true)
+test1() {
+  var f = () => 42;
+  return 1;
+}
+
+// parameter
+@IrRepresentation(true)
+test2(x) {
+  return x;
+}
+
+// dynamic invocation, construction
+@IrRepresentation(true)
+test3() {
+  new Object().hashCode;
+}
+
+// exceptions
+@IrRepresentation(true)
+test4() {
+  try {
+    throw "possum";
+  } catch (e) {
+    return e;
+  }
+}
+
+// control flow, loops
+@IrRepresentation(true)
+test5(x) {
+  while (x < 100) {
+    x += x;
+  }
+  if (x % 2 == 0) {
+    return 1;
+  } else {
+    return 2;
+  }
+}
+
+main() {
+  print(test1());
+  print(test2(1));
+  print(test3());
+  print(test4());
+  print(test5(2));
+}