[clang] [CIR] Record the source level identity of functions on cir.func (PR #207261)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- clang/unittests/CIR/CallOpTest.cpp clang/lib/CIR/CodeGen/CIRGenModule.cpp clang/lib/CIR/Dialect/IR/CIRDialect.cpp clang/test/CIR/CodeGen/array-init-loop-exprs.cpp clang/test/CIR/CodeGen/ctor-try-body.cpp clang/test/CIR/CodeGen/cxx-special-member-attr.cpp clang/test/CIR/CodeGen/inherited-ctors.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/clang/lib/CIR/Dialect/IR/CIRDialect.cpp b/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
index 0ffb48c35..9a79dd2d8 100644
--- a/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
+++ b/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
@@ -2560,7 +2560,8 @@ ParseResult cir::FuncOp::parse(OpAsmParser &parser, OperationState &state) {
       return failure();
     if (!mlir::isa<cir::CXXCtorAttr, cir::CXXDtorAttr, cir::CXXAssignAttr>(
             attr))
-      return parser.emitError(attrLoc, "expected a function info attribute, got ")
+      return parser.emitError(attrLoc,
+                              "expected a function info attribute, got ")
              << attr;
     state.addAttribute(funcInfoNameAttr, attr);
 

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https://github.com/llvm/llvm-project/pull/207261