[clang] [clang-tools-extra] [Sema][clangd] add noexcept to override functions during code completion (PR #75937)

[Shafik Yaghmour via cfe-commits]

================
@@ -183,7 +184,7 @@ class ResultBuilder {
 
   /// Overloaded C++ member functions found by SemaLookup.
   /// Used to determine when one overload is dominated by another.
-  llvm::DenseMap<std::pair<DeclContext *, /*Name*/uintptr_t>, ShadowMapEntry>
+  llvm::DenseMap<std::pair<DeclContext *, /*Name*/ uintptr_t>, ShadowMapEntry>
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shafik wrote:

```suggestion
  llvm::DenseMap<std::pair<DeclContext *, /*Name=*/uintptr_t>, ShadowMapEntry>
```

https://github.com/llvm/llvm-project/pull/75937