fixup! ci: Split up generated files by tree and toolchain version

Signed-off-by: Nathan Chancellor <[email protected]>

Author: nathanchance

utils.py

@@ -143,12 +143,12 @@ def get_repo_ref(config, tree_name):
 
 
 def get_llvm_versions(config, tree_name):
-    llvm_set = set()
+    llvm_versions = set()
     repo, ref = get_repo_ref(config, tree_name)
     for build in config["builds"]:
         if build["git_repo"] == repo and build["git_ref"] == ref:
-            llvm_set.add(build["llvm_version"])
-    return llvm_set
+            llvm_versions.add(build["llvm_version"])
+    return llvm_versions
 
 
 def print_red(msg):