Mark IsSwiftThunk as deprecated.

Author: adrian-prantl

lldb/include/lldb/API/SBFrame.h

@@ -93,6 +93,7 @@ class LLDB_API SBFrame {
   // guess the language type from the mangled name.
   lldb::LanguageType GuessLanguage() const;
 
+  LLDB_DEPRECATED("Use SBFrame::IsHidden() instead.")
   bool IsSwiftThunk() const;
 
   lldb::SBStructuredData GetLanguageSpecificData() const;

lldb/include/lldb/Target/StackFrame.h

@@ -413,6 +413,7 @@ class StackFrame : public ExecutionContextScope,
   bool IsHidden();
 
   /// Query whether this frame is a Swift Thunk.
+  LLDB_DEPRECATED("Use IsHidden() instead.")
   bool IsSwiftThunk();
 
   /// Get this frame language specific data.