Initializing D runtime and executing module and TLS ctors for D libraries

[rikki cattermole]

On 28/01/2021 1:16 PM, tsbockman wrote:
> The documentation build on dlang.org is broken. Check the source code or 
> Adam D. Ruppe's dpldocs.info for the complete documentation:
> http://dpldocs.info/experimental-docs/core.thread.osthread.html

Fixed: https://issues.dlang.org/show_bug.cgi?id=21309