[lld] [llvm] [WebAssembly] Add segment NO_STRIP flag to support private retained data (PR #81539)

[Sam Clegg via llvm-commits]

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@@ -2150,11 +2150,23 @@ static unsigned getWasmSectionFlags(SectionKind K) {
   if (K.isMergeableCString())
     Flags |= wasm::WASM_SEG_FLAG_STRINGS;
 
+  if (Retain) {
+    Flags |= wasm::WASM_SEG_FLAG_NO_STRIP;
+  }
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sbc100 wrote:

Remove curly braces to match surrounding code?

https://github.com/llvm/llvm-project/pull/81539