[lldb] [llvm] [llvm][lldb] Add check for incorrect target features (PR #180901)

[David Spickett via llvm-commits]

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@@ -351,6 +351,31 @@ class Target {
   /// InstrumentManager, if registered (default = nullptr).
   InstrumentManagerCtorTy InstrumentManagerCtorFn = nullptr;
 
+  bool isSignedFeatureList(StringRef FeaturesString) const {
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DavidSpickett wrote:

Valid format - because ValidFeatureList sounds like we're going to check all the features exist, which this is not intended to do.

https://github.com/llvm/llvm-project/pull/180901