cpsir unittests: move all unittests into individual files and test runners.

tests/compiler/dart2js/cps_ir/expected/runtime_types_2.js

Index: tests/compiler/dart2js/cps_ir/expected/runtime_types_2.js
diff --git a/tests/compiler/dart2js/cps_ir/expected/runtime_types_2.js b/tests/compiler/dart2js/cps_ir/expected/runtime_types_2.js
new file mode 100644
index 0000000000000000000000000000000000000000..d22895ff5afc8ed36708e8c8fc183f2af8e6f9c4
--- /dev/null
+++ b/tests/compiler/dart2js/cps_ir/expected/runtime_types_2.js
@@ -0,0 +1,23 @@
+// Expectation for test: 
+// class C<T, U> {
+//   foo() => print(U);
+// }
+// 
+// class D extends C<int, double> {}
+// 
+// main() {
+//   new D().foo();
+// }
+
+function() {
+  var line = H.S(H.createRuntimeType(H.runtimeTypeToString(H.getRuntimeTypeArgument(V.D$(), "C", 1))));
+  if (typeof dartPrint == "function")
+    dartPrint(line);
+  else if (typeof console == "object" && typeof console.log != "undefined")
+    console.log(line);
+  else if (!(typeof window == "object")) {
+    if (!(typeof print == "function"))
+      throw "Unable to print message: " + String(line);
+    print(line);
+  }
+}