[clang] [WIP][-Wunsafe-buffer-usage] Add alloc_size knowledge to the 2-param span constructor warning (PR #114894)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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You can test this locally with the following command:
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``````````bash
git-clang-format --diff bb9ff32867d633787b5dd2572bc6e2fe5dade107 3f4032e61fc6a847293cb53e44c8fee63b647bdc --extensions cpp -- clang/lib/Analysis/UnsafeBufferUsage.cpp clang/test/SemaCXX/warn-unsafe-buffer-usage-in-container-span-construct.cpp
``````````

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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Analysis/UnsafeBufferUsage.cpp b/clang/lib/Analysis/UnsafeBufferUsage.cpp
index 66e622fe2d..afeeda16f3 100644
--- a/clang/lib/Analysis/UnsafeBufferUsage.cpp
+++ b/clang/lib/Analysis/UnsafeBufferUsage.cpp
@@ -450,8 +450,7 @@ AST_MATCHER(CXXConstructExpr, isSafeSpanTwoParamConstruct) {
       }
     return false;
   };
-  std::optional<APSInt> Arg1CV =
-      Arg1->getIntegerConstantExpr(Ctx);
+  std::optional<APSInt> Arg1CV = Arg1->getIntegerConstantExpr(Ctx);
 
   if (Arg1CV && Arg1CV->isZero())
     // Check form 5:
@@ -483,8 +482,7 @@ AST_MATCHER(CXXConstructExpr, isSafeSpanTwoParamConstruct) {
 
   QualType Arg0Ty = Arg0->IgnoreImplicit()->getType();
 
-  if (auto *ConstArrTy =
-          Ctx.getAsConstantArrayType(Arg0Ty)) {
+  if (auto *ConstArrTy = Ctx.getAsConstantArrayType(Arg0Ty)) {
     const APSInt ConstArrSize = APSInt(ConstArrTy->getSize());
 
     // Check form 4:

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https://github.com/llvm/llvm-project/pull/114894