Emit GC info into a COMDAT section (#83371)

Saves 3.14% on BasicWebApi. 🤯

We run linker with COMDAT folding enabled. Generating this data into COMDAT foldable section allows linker to deduplicate these.

Author: MichalStrehovsky

src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/DependencyAnalysis/ObjectWriter.cs

@@ -535,9 +535,7 @@ public void PublishUnwindInfo(ObjectNode node)
 
                 byte[] blobSymbolName = _sb.Append(_currentNodeZeroTerminatedName).ToUtf8String().UnderlyingArray;
 
-                ObjectNodeSection section = ObjectNodeSection.XDataSection;
-                if (ShouldShareSymbol(node))
-                    section = GetSharedSection(section, _sb.ToString());
+                ObjectNodeSection section = GetSharedSection(ObjectNodeSection.XDataSection, _sb.ToString());
                 SwitchSection(_nativeObjectWriter, section.Name, GetCustomSectionAttributes(section), section.ComdatName);
 
                 EmitAlignment(4);