Use ngDevMode to tree shake error messages in pipes

🚀 feature request

Description

Currently all the errors throwed by pipes are not being tree-shaked in production mode.

Relevant Package

@angular/common/(pipes)

Example: https://github.com/angular/angular/blob/884f743baa667ee5b62d67c3fb9dabab1b03d2d8/packages/common/src/pipes/case_conversion_pipes.ts#L37-L39

Describe the solution you’d like

I have seen that you made a lot of progress with ngDevMode, so I think it would be a case of using it for the purpose of making the package smaller.

[alan-agius4]

Actually never mind, I just noticed that the check in https://github.com/angular/angular/blob/884f743baa667ee5b62d67c3fb9dabab1b03d2d8/packages/common/src/pipes/case_conversion_pipes.ts#L36 is using double = and not triple.

So you are right 😊

[ramthir]

I think it should be safe to tree-shake away this error in prod mode (in all pipes within the case_conversion_pipes.ts script).

@ramthir this looks similar to other changes you made recently. Please let us know if you might be interested in helping with this code?

Great @AndrewKushnir, I’ll raise a PR on this. 👍