RequirementMachine: Small fix for debug output

Author: slavapestov

lib/AST/RequirementMachine/HomotopyReduction.cpp

@@ -411,16 +411,16 @@ findRuleToDelete(llvm::function_ref<bool(unsigned)> isRedundantRuleFn) {
     if (!isRedundantRuleFn(ruleID))
       continue;
 
-    if (!found) {
-      found = pair;
-      continue;
-    }
-
     if (Debug.contains(DebugFlags::HomotopyReductionDetail)) {
       llvm::dbgs() << "** Candidate " << rule << " from loop #"
                    << pair.first << "\n";
     }
 
+    if (!found) {
+      found = pair;
+      continue;
+    }
+
     // 'rule' is the candidate rule; 'otherRule' is the best rule to eliminate
     // we've found so far.
     const auto &otherRule = getRule(found->second);