[clang] [LifetimeSafety] Add bailout for large CFGs (PR #170444)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- clang/test/Sema/warn-lifetime-safety-cfg-bailout.cpp clang/include/clang/Analysis/Analyses/LifetimeSafety/LifetimeSafety.h clang/lib/Analysis/LifetimeSafety/LifetimeSafety.cpp clang/unittests/Analysis/LifetimeSafetyTest.cpp --diff_from_common_commit
``````````

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in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/include/clang/Analysis/Analyses/LifetimeSafety/LifetimeSafety.h b/clang/include/clang/Analysis/Analyses/LifetimeSafety/LifetimeSafety.h
index 2bc647d21..81bfeffee 100644
--- a/clang/include/clang/Analysis/Analyses/LifetimeSafety/LifetimeSafety.h
+++ b/clang/include/clang/Analysis/Analyses/LifetimeSafety/LifetimeSafety.h
@@ -123,7 +123,7 @@ class LifetimeSafetyAnalysis {
 public:
   LifetimeSafetyAnalysis(AnalysisDeclContext &AC,
                          LifetimeSafetySemaHelper *SemaHelper,
-                        const LifetimeSafetyOpts &LSOpts);
+                         const LifetimeSafetyOpts &LSOpts);
 
   void run();
 
diff --git a/clang/lib/Analysis/LifetimeSafety/LifetimeSafety.cpp b/clang/lib/Analysis/LifetimeSafety/LifetimeSafety.cpp
index 61c5b837d..618292da0 100644
--- a/clang/lib/Analysis/LifetimeSafety/LifetimeSafety.cpp
+++ b/clang/lib/Analysis/LifetimeSafety/LifetimeSafety.cpp
@@ -48,9 +48,9 @@ static void DebugOnlyFunction(AnalysisDeclContext &AC, const CFG &Cfg,
 }
 #endif
 
-
 LifetimeSafetyAnalysis::LifetimeSafetyAnalysis(
-    AnalysisDeclContext &AC, LifetimeSafetySemaHelper *SemaHelper, const LifetimeSafetyOpts &LSOpts)
+    AnalysisDeclContext &AC, LifetimeSafetySemaHelper *SemaHelper,
+    const LifetimeSafetyOpts &LSOpts)
     : AC(AC), SemaHelper(SemaHelper), LSOpts(LSOpts) {}
 
 void LifetimeSafetyAnalysis::run() {

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https://github.com/llvm/llvm-project/pull/170444