Replace the exclusive term

[kuzminrobin]

1. In src/QirRuntime/test/QIR-static/qir-driver.cpp see comment for line 60 (bool dummy);).
2. See also this.

1

In general, style guide is to avoid the term "dummy," as that can be an exclusive term; something like "placeholder" or even "_" is strongly preferred.
Our own style guide on this isn't public, unfortunately, but it's worth noting both that our code of conduct explicitly bans discriminatory language, and that the term "dummy" is widely considered to fall under that definition. In particular, both Google and Twitter's style guides exclude "dummy" explicitly.
To be clear, I don't object to the functionality of having a placeholder argument like this, but I would strongly suggest that name be replaced as soon as is reasonably possible.

2 "Ensure exclusive language is not used in codebase"