[Hot Reload] HotReloadException race condition

[tmat]

The constructor of HotReloadException may be invoked before host has a chance to set Created field.
This may cause the application to crash before the host can handle the rude edit.

Instead of emitting invocation of a delegate store in Created field the compiler should read the delegate from the application context using AppContext.GetData("DOTNET_HOT_RELOAD_RUNTIME_RUDE_EDIT_HOOK") API. The host can set the data before applying any changes that may cause runtime rude edit.