Convert implementation in mirrors.cc to use Dart_GetType instead of Dart_GetClass.

runtime/vm/mirrors_api_impl.cc

Index: runtime/vm/mirrors_api_impl.cc
===================================================================
--- runtime/vm/mirrors_api_impl.cc	(revision 24443)
+++ runtime/vm/mirrors_api_impl.cc	(working copy)
@@ -221,8 +221,12 @@
   Function& func = Function::Handle();
   String& name = String::Handle();
 
-  if (obj.IsClass()) {
-    const Class& cls = Class::Cast(obj);
+  if (obj.IsType() || obj.IsClass()) {
+    // For backwards compatibility we allow class objects to be passed in
+    // for now. This needs to be removed once all code that uses class
+    // objects to invoke Dart_Invoke is removed.
+    const Class& cls = (obj.IsType()) ?
+        Class::Handle(Type::Cast(obj).type_class()) : Class::Cast(obj);
     const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate));
     if (!error.IsNull()) {
       return Api::NewHandle(isolate, error.raw());
@@ -283,8 +287,12 @@
 
   Function& func = Function::Handle(isolate);
   String& tmp_name = String::Handle(isolate);
-  if (obj.IsClass()) {
-    const Class& cls = Class::Cast(obj);
+  if (obj.IsType() || obj.IsClass()) {
+    // For backwards compatibility we allow class objects to be passed in
+    // for now. This needs to be removed once all code that uses class
+    // objects to invoke Dart_Invoke is removed.
+    const Class& cls = (obj.IsType()) ?
+        Class::Handle(Type::Cast(obj).type_class()) : Class::Cast(obj);
 
     // Case 1.  Lookup the unmodified function name.
     func = cls.LookupFunctionAllowPrivate(func_name);
@@ -561,8 +569,12 @@
   Field& field = Field::Handle(isolate);
   String& name = String::Handle(isolate);
 
-  if (obj.IsClass()) {
-    const Class& cls = Class::Cast(obj);
+  if (obj.IsType() || obj.IsClass()) {
+    // For backwards compatibility we allow class objects to be passed in
+    // for now. This needs to be removed once all code that uses class
+    // objects to invoke Dart_Invoke is removed.
+    const Class& cls = (obj.IsType()) ?
+        Class::Handle(Type::Cast(obj).type_class()) : Class::Cast(obj);
     const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate));
     if (!error.IsNull()) {
       return Api::NewHandle(isolate, error.raw());
@@ -614,8 +626,12 @@
   if (var_name.IsNull()) {
     RETURN_TYPE_ERROR(isolate, variable_name, String);
   }
-  if (obj.IsClass()) {
-    const Class& cls = Class::Cast(obj);
+  if (obj.IsType() || obj.IsClass()) {
+    // For backwards compatibility we allow class objects to be passed in
+    // for now. This needs to be removed once all code that uses class
+    // objects to invoke Dart_Invoke is removed.
+    const Class& cls = (obj.IsType()) ?
+        Class::Handle(Type::Cast(obj).type_class()) : Class::Cast(obj);
     return Api::NewHandle(isolate, cls.LookupField(var_name));
   }
   if (obj.IsLibrary()) {