Allowing inlining of static getters and methods in a different library. Also report an error if a g…

tests/compiler/dart2js/mock_compiler.dart

Index: tests/compiler/dart2js/mock_compiler.dart
===================================================================
--- tests/compiler/dart2js/mock_compiler.dart	(revision 17215)
+++ tests/compiler/dart2js/mock_compiler.dart	(working copy)
@@ -142,6 +142,10 @@
     // the interfaces of the Object class which would be 'null' if the class
     // wasn't resolved.
     objectClass.ensureResolved(this);
+
+    // Our unit tests check code generation output that is affected by
+    // inlining support.
+    disableInlining = true;
   }
 
   /**