Fix integration tests.

[1uc]

There must not be a clash of FUNCTION and RANGE names.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.54%. Comparing base (c5ecfea) to head (e0d08f0).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1313   +/-   ##
=======================================
  Coverage   85.54%   85.54%           
=======================================
  Files         178      178           
  Lines       13415    13415           
=======================================
  Hits        11476    11476           
  Misses       1939     1939           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[bbpbuildbot]

Logfiles from GitLab pipeline #216396 (:white_check_mark:) have been uploaded here!

Status and direct links:

• ✅ spack_setup
• ✅ build:intel
• ✅ build:nvhpc
• ✅ test:intel
• ✅ test:nvhpc

[JCGoran]

For context, nrnivmodl fails with:

Error: alfa used as both variable and function in file glia_sparse.mod

while nmodl --neuron generates the file without issues, which it shouldn't.

[1uc]

There's (now) a ticket for the issue: #1316