Support for native in leg, and start moving native tests to a specific test suite.

frog/leg/compiler.dart

Index: frog/leg/compiler.dart
===================================================================
--- frog/leg/compiler.dart	(revision 4354)
+++ frog/leg/compiler.dart	(working copy)
@@ -253,6 +253,11 @@
   void runCompiler(Script script) {
     scanBuiltinLibraries();
     mainApp = new LibraryElement(script);
+    if (script.name.contains('dart/frog/tests/native/src')) {

[ahe, 2012/02/19 14:38:02]

I like this.

[Lasse Reichstein Nielsen, 2012/02/20 07:33:56]

I would prefer to have it only enabled by a flag (possibly even have the flag
contain the path slice instead of hardcoding it).
It's a magic value, and a test that can potentially blow up in someone's face.

[ngeoffray, 2012/02/20 17:00:02]

As discussed, that's half-way intended :)

+      mainApp.define(new ForeignElement(
+          const SourceString('native'), mainApp), this);
+    }
+
     Element element;
     withCurrentElement(mainApp, () {
         scanner.scan(currentElement);