Fix Windows native code profiling.

Fix Windows native code profiling.

The start address for native symbols is now correctly computed.

Before it was left 0 - the symbol lookup code was just enabled in my previous CL.

BUG=
R=johnmccutchan@google.com

Committed: https://github.com/dart-lang/sdk/commit/9111df606e5250e5bbfb241bbcf85fc4aea95802

[Florian Schneider, 2017-03-22 21:15:22]

Description was changed from

==========
Fix Windows native code profiling.

The start address for native symbols is now correctly computed.

BUG=
==========

to

==========
Fix Windows native code profiling.

The start address for native symbols is now correctly computed.

Before it was left 0 - the symbol lookup code was just enabled in my previous
CL.

BUG=
==========

[Florian Schneider, 2017-03-22 21:16:02]

fschneider@google.com changed reviewers:
+ johnmccutchan@google.com

[Cutch, 2017-03-22 21:17:14]

lgtm

[Florian Schneider, 2017-03-22 21:17:52]

Description was changed from

==========
Fix Windows native code profiling.

The start address for native symbols is now correctly computed.

Before it was left 0 - the symbol lookup code was just enabled in my previous
CL.

BUG=
==========

to

==========
Fix Windows native code profiling.

The start address for native symbols is now correctly computed.

Before it was left 0 - the symbol lookup code was just enabled in my previous
CL.

BUG=
R=johnmccutchan@google.com

Committed:
https://github.com/dart-lang/sdk/commit/9111df606e5250e5bbfb241bbcf85fc4aea95802
==========

[Florian Schneider, 2017-03-22 21:17:53]

Committed patchset #1 (id:1) manually as
9111df606e5250e5bbfb241bbcf85fc4aea95802 (presubmit successful).