Question mode usage feedback updates.

[yuehuang010]

Updating a task behavior to avoid False positives.

After using /question switch on several repro, I am changing a few tasks to reduce False Positive. These task will continue perform there operations as in a normal build. If they impact the incremental build, then it would appear in downstream error. These task should log there file activity so that it could be traced.

Touch and Delete tasks - demote error to warning.

• Touch is being used to signal processes outside of the build. IE, After build completion, a file is touched to let the other services know work is completed.
• In C++, touch/delete is used to detect if the build has reached the end or has errored half way through. Using timestamp of the primary output is not a accurate because the build can fail in the post build steps.

WriteLinesToFile Task - remove questioning when WriteOnlyWhenDifferent is false.

• A common operation is to use this task to write to status log file which are always appending.
• The Unit Tested already assumed WriteOnlyWhenDifferent is true, so no tests change are needed.

GenerateResource Task - Fix missing message.

• Note: the detail messages explaining the inputs and outputs are already printed in low priority. This change converts the Log.Message of the task being executed to a error.

[YuliiaKovalova]

@yuehuang010 , could I ask you to fix the build?
Thank you!

[JanKrivanek]

Spinned of from the #8881 changes

[YuliiaKovalova]

Hi @yuehuang010,

The PR looks good to me, but could you reply to @Forgind questions above?

[JanKrivanek]

Looks good to me.
I'm still opinionated on having a dedicated error resource string for failed incrementality check. If that's added - I'll sign off. I'm fine to be voted-off (hence I'm not requesting the change). Or if there is a good reason not to have a separate string for that - I'm ready to listen for reasons.

[JanKrivanek]

I have couple comments - but those are just minor suggestions for consideration. Feel free to resolve those.
Other than that - I'm happy with the current state.

Thank you!