Accessing a static var on a datum assigned to proc var doesn't mark the var as used

ID:2152283
 
Sep 26 2016, 11:17 am
BYOND Version:511.1358
Operating System:Windows 7 Ultimate 64-bit
Web Browser:Chrome 53.0.2785.116
Applies to:Dream Maker
Status: Open
Issue hasn't been assigned a status value.
Descriptive Problem Summary:
Accessing a static var on a datum assigned to proc var doesn't mark the var as used, causing a var defined but not used warning if no non-static vars are used

Code Snippet (if applicable) to Reproduce Problem:
datum
    testdatum5
        var/static/var1 = 0
mob
    proc/testcompilewarningbug()
        var/datum/testdatum5/D = new()
        D.var1 += 1
        . += D.var1


Expected Results:
nothing
Actual Results:
warning: D: variable defined but not used


(Confirmed in 510 as well)