[llvm] [DropUnnecessaryAssumes] Fix iterator invalidation. (PR #203765)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Transforms/Scalar/DropUnnecessaryAssumes.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/llvm/lib/Transforms/Scalar/DropUnnecessaryAssumes.cpp b/llvm/lib/Transforms/Scalar/DropUnnecessaryAssumes.cpp
index 7c3856856..3c8cf93e8 100644
--- a/llvm/lib/Transforms/Scalar/DropUnnecessaryAssumes.cpp
+++ b/llvm/lib/Transforms/Scalar/DropUnnecessaryAssumes.cpp
@@ -67,7 +67,7 @@ DropUnnecessaryAssumesPass::run(Function &F, FunctionAnalysisManager &FAM) {
   AssumptionCache &AC = FAM.getResult<AssumptionAnalysis>(F);
   bool Changed = false;
 
-    for (unsigned I = 0, E = AC.assumptions().size(); I != E; ++I) {
+  for (unsigned I = 0, E = AC.assumptions().size(); I != E; ++I) {
     auto *Assume = cast_or_null<AssumeInst>(AC.assumptions()[I]);
     if (!Assume)
       continue;

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https://github.com/llvm/llvm-project/pull/203765