[clang] [attributes][analyzer] Generalize [[clang::suppress]] to declarations. (PR #80371)

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``````````bash
git-clang-format --diff 4d89356fef1a568de790ad8b3f53dc494b461e5b b702fcca1b4c5924ce4740d054e396aa4bc67e97 -- clang/test/Analysis/suppression-attr.cpp clang/lib/Sema/SemaDecl.cpp clang/lib/Sema/SemaDeclAttr.cpp clang/lib/StaticAnalyzer/Checkers/ObjCUnusedIVarsChecker.cpp clang/lib/StaticAnalyzer/Core/BugSuppression.cpp clang/test/Analysis/Checkers/WebKit/ref-cntbl-base-virtual-dtor.cpp clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp clang/test/Analysis/Checkers/WebKit/uncounted-local-vars.cpp clang/test/Analysis/Checkers/WebKit/uncounted-members.cpp clang/test/Analysis/suppression-attr-doc.cpp clang/test/SemaCXX/attr-suppress.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/StaticAnalyzer/Checkers/ObjCUnusedIVarsChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/ObjCUnusedIVarsChecker.cpp
index 4f8750d9f1..2f2df63468 100644
--- a/clang/lib/StaticAnalyzer/Checkers/ObjCUnusedIVarsChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/ObjCUnusedIVarsChecker.cpp
@@ -161,8 +161,8 @@ static void checkObjCUnusedIvar(const ObjCImplementationDecl *D,
 
       PathDiagnosticLocation L =
           PathDiagnosticLocation::create(Ivar, BR.getSourceManager());
-      BR.EmitBasicReport(ID, Checker, "Unused instance variable", "Optimization",
-                         os.str(), L);
+      BR.EmitBasicReport(ID, Checker, "Unused instance variable",
+                         "Optimization", os.str(), L);
     }
 }
 

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https://github.com/llvm/llvm-project/pull/80371