swift

8628b94d - Improvements to optional-to-Any coercion warning.

Improvements to optional-to-Any coercion warning. Don't explicitly desguar types when it is not needed and/or results in worse types displayed in diagnostics. Tweak the warning messages to use "this warning" rather than "the warning". Addresses feedback from Jordan on commit 401ca2453284a990b59bef2e649dcedef05a2b00. (cherry picked from commit d8135798ebf95fa3d386b5064562fa894f075df7)