[llvm] [NFC] Remove UnwindTable dependency on CIE, and FDE (PR #142520)

[Igor Kudrin via llvm-commits]

================
@@ -325,6 +322,8 @@ class UnwindTable {
   using iterator = RowContainer::iterator;
   using const_iterator = RowContainer::const_iterator;
 
+  UnwindTable(RowContainer Rows) : Rows(Rows) {}
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igorkudrin wrote:

```suggestion
  UnwindTable(RowContainer &&Rows) : Rows(std::move(Rows)) {}
```
It's better to avoid unnecessary copying.

https://github.com/llvm/llvm-project/pull/142520