[clang] [llvm] [AArch64] Decouple feature dependency expansion. (PR #94279)

[Tomas Matheson via cfe-commits]

================
@@ -265,6 +267,21 @@ bool AArch64::ExtensionSet::parseModifier(StringRef Modifier) {
   return false;
 }
 
+void AArch64::ExtensionSet::reconstructFromParsedFeatures(
+    std::vector<std::string> &Features) {
----------------
tmatheson-arm wrote:

```suggestion
    const std::vector<std::string> &Features) {
```

https://github.com/llvm/llvm-project/pull/94279