[lld] [CGData][lld-macho] Merge CG Data by LLD (PR #112674)

[via llvm-commits]

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@@ -1326,7 +1326,8 @@ static void codegenDataGenerate() {
   TimeTraceScope timeScope("Generating codegen data");
 
   OutlinedHashTreeRecord globalOutlineRecord;
-  for (ConcatInputSection *isec : inputSections)
+  StableFunctionMapRecord globalMergeRecord;
+  for (ConcatInputSection *isec : inputSections) {
     if (isec->getSegName() == segment_names::data &&
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alx32 wrote:

Can we merge the `if(isec->getSegName() == segment_names::data)` check here and below on 1341 ? 

https://github.com/llvm/llvm-project/pull/112674