This issue was originally filed by mn...@gmail.com

What steps will reproduce the problem?

1. Create the following code in the Editor:

  void main() {
    var x = foo();
    print(x);
  }
  
  List<String> foo() {
    return ["hello", "world"];
  }

1. Hover the mouse over 'x' inside 'print(x)'

What is the expected output? What do you see instead?

Inside the tooltip, I expect to see "List<String> x" but I see "var x" instead.

What version of the product are you using? On what operating system?

Version 0.1.0.201208131139, Build 10597
Dart SDK version 10595
OS X 10.6.8

The Dart community seems to be establishing a cultural norm where type annotations are used at API boundaries and not used for local variables. This works great with the Editor's local type inference option. It would be helpful to have an Editor option allowing variable tooltips to show the results of type inference. This allows some of the documentation benefits of types without cluttering code with them all the time.

Related: I've occasionally seen a variable tooltip like "var foo - instance of List<String>" but haven't been able to discern when those kinds of tooltips are shown and when they're not.