[clang] [clang] model WASM alloca addrspaces in Sema (PR #197540)

[Matt Arsenault via cfe-commits]

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@@ -15101,6 +15070,15 @@ LangAS ASTContext::getLangASForBuiltinAddressSpace(unsigned AS) const {
   if (LangOpts.CUDA)
     return getTargetInfo().getCUDABuiltinAddressSpace(AS);
 
+  if (getTargetInfo().getTriple().isWasm()) {
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arsenm wrote:

Why isn't this in getLangASFromTargetAS?

https://github.com/llvm/llvm-project/pull/197540