Wrap and unwrap types in dart:mirrors

tool/input_sdk/private/ddc_runtime/types.dart

Index: tool/input_sdk/private/ddc_runtime/types.dart
diff --git a/tool/input_sdk/private/ddc_runtime/types.dart b/tool/input_sdk/private/ddc_runtime/types.dart
index 2511b40777e2362c2c6585eb821a0b4ed9b78bc4..aaaa265752c3a617732db3a0dbbf41f033a35208 100644
--- a/tool/input_sdk/private/ddc_runtime/types.dart
+++ b/tool/input_sdk/private/ddc_runtime/types.dart
@@ -73,6 +73,8 @@ class WrappedType extends TypeRep {
   final _runtimeType;
   WrappedType(this._runtimeType);
   toString() => typeName(_runtimeType);
+
+  unwrapped() => _runtimeType;

[Bob Nystrom, 2016/05/17 21:55:49]

I think this should probably be a top level function in the RTTI library, so
user's can't do stuff like:

(foo.runtimeType as dynamic).unwrapped();

 }
 
 final AbstractFunctionType = JS('', '''
@@ -288,7 +290,7 @@ final FunctionType = JS('', '''
         for (var i = 0; i < array.length; ++i) {
           var arg = array[i];
           if (arg instanceof Array) {
-            metadata.push(arg[1]);
+            metadata.push(arg.slice(1));
             result.push(arg[0]);
           } else {
             metadata.push([]);