'Compiler failure' when hover-inspecting vars in macro debugger

[inert-aesthetic]

Failure("Compiler failure
Please submit an issue at https://github.com/HaxeFoundation/haxe/issues/new
Attach the following information:
Haxe: 5.0.0-alpha.1+5e4e368; OS type: unix;
File "src/macro/eval/evalDebugMisc.ml", line 145, characters 22-29
Called from file "src/macro/eval/evalDebugMisc.ml", line 153, characters 12-20
Called from file "src/macro/eval/evalDebugMisc.ml", line 228, characters 12-19
Called from file "src/macro/eval/evalDebugSocket.ml", line 22, characters 3-6
Called from file "src/macro/eval/evalThread.ml", line 96, characters 8-14
Called from file "thread.ml", line 39, characters 8-14
")

Occurs on most vars.
I also had many errors that TypePath cannot have a pos, which was working prior. Unable to repro this part now, likely unrelated.

On 5.0.0-alpha.1+650842 I get a similar error:

Globals.Ice("Compiler failure
Please submit an issue at https://github.com/HaxeFoundation/haxe/issues/new
Attach the following information:", "File "src/macro/eval/evalDebugMisc.ml", line 145, characters 22-29
Called from file "src/macro/eval/evalDebugMisc.ml", line 154, characters 12-20
Called from file "src/macro/eval/evalDebugSocket.ml", line 22, characters 3-6
Called from file "src/macro/eval/evalThread.ml", line 96, characters 8-14
Called from file "thread.ml", line 39, characters 8-14
")

In case relevant, the macro is:
https://github.com/inert-aesthetic/thinglib/blob/master/com/thinglib/macro/Codegen.hx

[inert-aesthetic]

And on 4.3.6

Compiler failure
Please submit an issue at https://github.com/HaxeFoundation/haxe/issues/new
Attach the following information:
Haxe: 4.3.6; OS type: unix;
File "src/macro/eval/evalDebugMisc.ml", line 145, characters 22-29
Called from file "src/macro/eval/evalDebugMisc.ml", line 153, characters 12-20
Called from file "src/macro/eval/evalDebugSocket.ml", line 24, characters 3-6
Called from file "src/macro/eval/evalThread.ml", line 96, characters 8-14
Called from file "thread.ml", line 39, characters 8-14
File "src/core/globals.ml", line 156, characters 1-7: Assertion failed