Specifiy MethodMirror.isStatic is terms of whether 'this' is permitted.

tests/lib/mirrors/method_mirror_properties_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import "dart:mirrors";
 
 import "package:expect/expect.dart";
 
 doNothing42() {}
 
@@ skipping 17 matching lines @@
   C();
   C.other();
   C.other2() : this.other();
 
   var _priv;
   get priv => _priv;
   set priv(value) => _priv = value;
 }
 
 checkKinds(method, kinds) {
-  Expect.equals(method.isStatic, kinds[0]);
-  Expect.equals(method.isAbstract, kinds[1]);
-  Expect.equals(method.isGetter, kinds[2]);
-  Expect.equals(method.isSetter, kinds[3]);
-  Expect.equals(method.isConstructor, kinds[4]);
+  Expect.equals(kinds[0], method.isStatic, "isStatic");
+  Expect.equals(kinds[1], method.isAbstract, "isAbstract");
+  Expect.equals(kinds[2], method.isGetter, "isGetter");
+  Expect.equals(kinds[3], method.isSetter, "isSetter");
+  Expect.equals(kinds[4], method.isConstructor, "isConstructor");
 }
 
 main() {
   // Top level functions should be static.
   var closureMirror = reflect(doNothing42);
   checkKinds(closureMirror.function,
       [true, false, false, false, false]);
   var libraryMirror = reflectClass(C).owner;
   checkKinds(libraryMirror.declarations[#topGetter],
       [true, false, true, false, false]);
@@ skipping 16 matching lines @@
   classMirror = reflectClass(AbstractC);
   checkKinds(classMirror.declarations[#AbstractC],
       [false, false, false, false, true]);
   checkKinds(classMirror.declarations[#bar],
       [false, true, false, false, false]);
   checkKinds(classMirror.declarations[#priv],
       [false, true, true, false, false]);
   checkKinds(classMirror.declarations[const Symbol("priv=")],
       [false, true, false, true, false]);
 }