New Issue: Move the Built-in Types and Functions docs into the spec

18027, "mppf", "Move the Built-in Types and Functions docs into the spec", "2021-07-02T11:00:40Z"

On the sidebar in Chapel Documentation — Chapel Documentation 1.25 we have "Built-in Types and Functions" . These sections are duplicative with spec sections, e.g.:

Ranges — Chapel Documentation 1.25
Ranges — Chapel Documentation 1.25

We've historically had problems updating both of these so they can be in conflict.

In #16814 we reached the plan of moving the generated documentation for the internal modules (Built-in Types and Functions) into the appropriate spec sections. This issue tracks the task of actually doing it.