Adjusts dart2js backend to handle method type arguments.

pkg/compiler/lib/src/resolution/type_resolver.dart

Index: pkg/compiler/lib/src/resolution/type_resolver.dart
diff --git a/pkg/compiler/lib/src/resolution/type_resolver.dart b/pkg/compiler/lib/src/resolution/type_resolver.dart
index e1a076df6982c6eacf4a11cd36f33af76d2d0820..9837a0999486284db717f99d77ba1fa51660f4c4 100644
--- a/pkg/compiler/lib/src/resolution/type_resolver.dart
+++ b/pkg/compiler/lib/src/resolution/type_resolver.dart
@@ -206,10 +206,6 @@ class TypeResolver {
           }
         }
       } else if (element.isTypeVariable) {
-        // FIXME: check enclosing, which may be not class, not typedef (so
-        // it's a generic method) then set the type to `const DynamicType()`.
-        // This should later be fixed such that we don't tell the user that they
-        // wrote `dynamic` anywhere.
         TypeVariableElement typeVariable = element;
         Element outer =
             visitor.enclosingElement.outermostEnclosingMemberOrTopLevel;