[clang] [NFC][CLANG] Fix static analyzer bugs about unnecessary object copies… (PR #85962)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (smanna12)

<details>
<summary>Changes</summary>

Reported by Static Analyzer Tool:
In clang::dataflow::Environment::initialize(): Using the auto keyword without 
an &amp; causes the copy of an object of type LambdaCapture

---
Full diff: https://github.com/llvm/llvm-project/pull/85962.diff


1 Files Affected:

- (modified) clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp (+1-1) 


``````````diff
diff --git a/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp 
b/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
index cc1ebd511191a9..70e0623805a8cf 100644
--- a/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
+++ b/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
@@ -416,7 +416,7 @@ void Environment::initialize() {
     assert(Parent != nullptr);
 
     if (Parent->isLambda()) {
-      for (auto Capture : Parent->captures()) {
+      for (const auto &Capture : Parent->captures()) {
         if (Capture.capturesVariable()) {
           const auto *VarDecl = Capture.getCapturedVar();
           assert(VarDecl != nullptr);

``````````

</details>


https://github.com/llvm/llvm-project/pull/85962
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