[llvm] [WebAssembly] Allocate MCSymbolWasm data on MCContext. (PR #85866)

[Derek Schuff via llvm-commits]

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@@ -850,6 +861,15 @@ class MCContext {
 
   void deallocate(void *Ptr) {}
 
+  /// Allocates the given string on the allocator managed by this context and
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dschuff wrote:

```suggestion
  /// Allocates a copy of the given string on the allocator managed by this context and
```

https://github.com/llvm/llvm-project/pull/85866