Implement reflective access to static methods.

dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart

Index: dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart b/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
index 7411bc9aec29ea998e3288ffdd487318cfd032df..51ffcfc1b7bc593802e25de4c693499527f68c32 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/elements/elements.dart
@@ -497,7 +497,9 @@ class Elements {
     if (r != 0) return r;
     Token positionA = a.position();
     Token positionB = b.position();
-    r = positionA.charOffset.compareTo(positionB.charOffset);
+    int offsetA = positionA == null ? -1 : positionA.charOffset;
+    int offsetB = positionB == null ? -1 : positionB.charOffset;
+    r = offsetA.compareTo(offsetB);
     if (r != 0) return r;
     r = a.name.slowToString().compareTo(b.name.slowToString());
     if (r != 0) return r;