Fractions not recognised in alias and enum

[LupusTheCanine]

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Windows

What is the issue affecting?

Annotations, Type Checking, Diagnostics/Syntax Checking

Expected Behaviour

---@alias SampleCount  # fractions for reduced resolution
---| 0.125 # 9 bit sample
---| 0.25 # 10 bit sample
---| 0.5 # 11 bit sample
---| 1 # 12 bit sample 
---| 2 # 2 12 bit samples
-- ...

0.125, 0.25 and 0.5 are correctly identified as numbers and treated accordingly

Actual Behaviour

0.125, 0.25 and 0.5 are labeled as "Undefined type or alias"

Reproduction steps

1. Paste the code above in lua file
2. Observe highlight on all fractional values in enum

Additional Notes

No response

Log File

No response