fixes #37559

With TS 2.6's strict functions mode, you cannot use a subclass in place of a parent parameter type in a callback

TS cannot properly infer the types in this case

Move PHP extension to strict mode

Compile the PHP extension with strict mode TS. Mostly adding annotations where values can be null or undefined.

WIth strictFunctions, the callback can no longer use implicit casts to a subclass for parameter types. This pattern was widely used with `.on` event callbacks in the dom

rename startupTimer to performance, support mark and measure, drop promise support, add more marks to slowly phase out old timers

* Support to report TS style checks as warnings

* typos

fixes #37694