Mihaela Chirea - SAOC 2020 Milestone 1 Update 4 - Improving DMD as a Library

[Mihaela Chirea]

Hello!

Here is an update of the progress made during the last week of 
Milestone 1 as part of #SAOC2020:
- I mostly worked on the token location offset tests[1]. This 
included studying the lexer, parser and tokens in more detail to 
make sure all the tokens are getting the right offset.
- Updated the list of locations[2] to show the nodes missing the 
start location more clearly. It currently contains most nodes in 
attrib.d and DebugCondition and VersionCondition from cond.d.

For next week:
- Add the start location to the nodes that lack this information, 
starting with the ones from cond.d

These tasks were mentioned in the previous update[3] and will be 
done during the second Milestone:
- Bring all DMD as a library additions hidden behind a version 
under DMDLIB
- Add the token size

The initial milestones can be found here[4]. I will post the 
updated list as a reply to that thread and use that link in 
future updates.

[1]: https://github.com/dlang/dmd/pull/11823
[2]: 
https://drive.google.com/file/d/1lb-eP9Pai713tggud6iuzA1cIetbK4zc/view?usp=sharing
[3]: 
https://forum.dlang.org/post/vshahvctwdhrmrjssool@forum.dlang.org
[4]: 
https://forum.dlang.org/post/ztbjfjebxtysmugfzkmz@forum.dlang.org