[Patterns] Debugger seems to show some internal implementation variables

[a-siva]

When debugging an app which uses patterns we seem to show synthetic variables.
The vm service has a way of filtering synthetic variables and it appears that these variables are not following that pattern.

See image below for an example :

[a-siva]

//cc @alexmarkov @bkonyi @derekxu16 @stevemessick

[stevemessick]

Thanks @a-siva ! FWIW I have also seen synthetic variables that begin with a single #.

[a-siva]

Thanks @a-siva ! FWIW I have also seen synthetic variables that begin with a single #.

The VM has code to filter out names that start with ':', the '#' and '##' patterns is new, Alex is going to chat with the CFE team and figure out a consistent pattern for these synthetic variables so that they are filtered out.

[alexmarkov]

This is blocked on #51554. Once front-end introduces a proper way to distinguish synthetic variables, we would be able to filter those variables in the VM/debugger.