Rename variable in collect_terms.py for readability

Co-authored-by: Manuel Blatt <[email protected]>

decompiler/pipeline/controlflowanalysis/expression_simplification/rules/collect_terms.py

@@ -34,7 +34,7 @@ def apply(self, operation: Operation) -> list[tuple[Expression, Expression]]:
         identity_constant = _identity_constant(operation.operation, operation.type)
         return [
             (first, folded_constant),
-            *((o, identity_constant) for o in rest)
+            *((constant, identity_constant) for constant in rest)
         ]