Sort declarations in type_analysis_result.dart.

No functional change.

Change-Id: I412f44cd6e38d1c10aed0b40afc3745aa1126814
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/291881
Reviewed-by: Chloe Stefantsova <[email protected]>
Commit-Queue: Paul Berry <[email protected]>

Author: stereotype441