clang-tidy: Enable performance-inefficient-string-concatenation

Enables the clang-tidy test performance-inefficient-string-concatenation
and replaces all inefficient string concatenations with `cmStrCat`.

Closes: #19555

1 files changed, 1 insertions, 1 deletions

diff --git a/Source/cmGeneratorExpressionNode.cxx b/Source/cmGeneratorExpressionNode.cxx
index 14dc7b8..f78c72e 100644
--- a/Source/cmGeneratorExpressionNode.cxx
+++ b/Source/cmGeneratorExpressionNode.cxx
@@ -1441,7 +1441,7 @@ static const struct TargetObjectsNode : public cmGeneratorExpressionNode
       }
 
       for (std::string& o : objects) {
-        o = obj_dir + o;
+        o = cmStrCat(obj_dir, o);
       }
     }