Skip local variable dependepcies.

Skip local variable dependepcies.

This should help with exceptions on bots.

R=brianwilkerson@google.com
BUG=

Committed: https://github.com/dart-lang/sdk/commit/1fab9b0ecca9058e5e8207e4ff745957ba0be606

[Brian Wilkerson, 2015-11-23 18:09:16]

LGTM

[scheglov, 2015-11-23 18:10:20]

Committed patchset #1 (id:1) manually as
1fab9b0ecca9058e5e8207e4ff745957ba0be606 (presubmit successful).

[Paul Berry, 2015-11-23 18:31:55]

On 2015/11/23 18:10:20, scheglov wrote:
> Committed patchset #1 (id:1) manually as
> 1fab9b0ecca9058e5e8207e4ff745957ba0be606 (presubmit successful).

Is this intended as a permanent fix or a temporary measure?  I'm concerned about
what will happen with cases like this:

final a = () {
  final b = c;
}();
final c = 1;

What type will we infer for a?  Will it depend on the relative order of running
type propagation on a and c?

[scheglov, 2015-11-23 18:35:57]

On 2015/11/23 18:31:55, Paul Berry wrote:
> On 2015/11/23 18:10:20, scheglov wrote:
> > Committed patchset #1 (id:1) manually as
> > 1fab9b0ecca9058e5e8207e4ff745957ba0be606 (presubmit successful).
> 
> Is this intended as a permanent fix or a temporary measure?  I'm concerned
about
> what will happen with cases like this:
> 
> final a = () {
>   final b = c;
> }();
> final c = 1;
> 
> What type will we infer for a?  Will it depend on the relative order of
running
> type propagation on a and c?

We cannot set the propagated type of "a" in this case.
And AFAIK we don't propagate function return types except for a very limited
case.