[llvm] [IR] Add TargetExtType::CanBeLocal property (PR #99016)

[Nikita Popov via llvm-commits]

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@@ -769,6 +769,9 @@ class TargetExtType : public Type {
     HasZeroInit = 1U << 0,
     /// This type may be used as the value type of a global variable.
     CanBeGlobal = 1U << 1,
+    /// This type may be allocated on the stack, either as the allocated type
+    // of an alloca instruction or as a byval function parameter.
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nikic wrote:

```suggestion
    /// of an alloca instruction or as a byval function parameter.
```

https://github.com/llvm/llvm-project/pull/99016