Replace dart_core.js with actual compiled SDK

lib/src/utils.dart

Index: lib/src/utils.dart
diff --git a/lib/src/utils.dart b/lib/src/utils.dart
index dd62656ddfa875dfc0f7bd617775b75237a0ab04..0c286f3033b207a01157f4b4162941ef8d1640b5 100644
--- a/lib/src/utils.dart
+++ b/lib/src/utils.dart
@@ -316,15 +316,21 @@ String resourceOutputPath(Uri resourceUri, Uri entryUri) {
   // further inside the folder where the entrypoint is located, otherwise we
   // assume this is a runtime resource from the dev_compiler.
   if (!relativePath.startsWith('..')) return relativePath;
+
   var segments = resourceUri.pathSegments;
-  var len = segments.length;
-  if (segments.length < 4 ||
-      segments[len - 2] != 'runtime' ||
-      segments[len - 3] != 'lib' ||
-      // If loaded from sources this will be exactly dev_compiler, otherwise it
-      // can be the name in the pub cache (typically dev_compiler-version).
-      !segments[len - 4].startsWith('dev_compiler')) {
-    return null;
+  for (int i = 0, len = segments.length; i < len; i++) {
+    var s = segments[i];
+    if (_packageNameWithVersion.stringMatch(s) == s &&

[Siggi Cherem (dart-lang), 2015/03/19 23:11:14]

FYI you'll have a not so fun merge conflict here :/

+        i + 3 < len &&
+        segments[i + 1] == 'lib' &&
+        segments[i + 2] == 'runtime') {
+      return path.joinAll(['dev_compiler']..addAll(segments.skip(i + 2)));
+    }
   }
-  return path.joinAll(['dev_compiler']..addAll(segments.skip(len - 2)));
+  return null;
 }
+
+// If loaded from sources this will be exactly dev_compiler, otherwise it
+// can be the name in the pub cache (typically dev_compiler-version).
+// TODO(jmesserly): avoid depending on pub cache implementation details.
+final _packageNameWithVersion = new RegExp('dev_compiler[0-9A-Za-z-.]*');