If I have a variable like "Session" and you want to use it in the immediate window you get this:
"s" -> empty completion window
"S" -> "Session" shows up
In the xml and c# editors it doesn't pay attention to the casing of the variable when filling the autocompletion window.
I can confirm using the latest Visual Studio 2017 for Mac Preview version 7.2 I am able to reproduce this issue. Marking this report as CONFIRMED.
Fixed in version 188.8.131.528 (master)
Pull Request #163 merged by: David Karla??
Commit: 62df158a916e0f78a41735e71f80c8c7f02b19c5 (mono/debugger-libs)
Included in Commit: 6817a060b9211f99da716e9f2d52f1c1b040dcd0 (mono/monodevelop)