[llvm] [Attr] Add `noipa` function attribute (PR #203304)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/Bitcode/LLVMBitCodes.h llvm/include/llvm/IR/GlobalValue.h llvm/lib/Bitcode/Reader/BitcodeReader.cpp llvm/lib/Bitcode/Writer/BitcodeWriter.cpp llvm/lib/IR/Globals.cpp llvm/lib/Transforms/IPO/FunctionAttrs.cpp llvm/lib/Transforms/Utils/CodeExtractor.cpp llvm/unittests/IR/FunctionTest.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/llvm/include/llvm/IR/GlobalValue.h b/llvm/include/llvm/IR/GlobalValue.h
index 59424f201..6e46eced4 100644
--- a/llvm/include/llvm/IR/GlobalValue.h
+++ b/llvm/include/llvm/IR/GlobalValue.h
@@ -493,9 +493,7 @@ public:
   /// interposable (see \c isInterposable), since in such cases the currently
   /// visible variant is *a* correct implementation of the original source
   /// function; it just isn't the *only* correct implementation.
-  bool isDefinitionExact() const {
-    return !mayBeDerefinedOrNoIPA();
-  }
+  bool isDefinitionExact() const { return !mayBeDerefinedOrNoIPA(); }
 
   /// Return true if this global has an exact defintion.
   bool hasExactDefinition() const {

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https://github.com/llvm/llvm-project/pull/203304