Merge commit 'd384c3747fab' from swift/release/5.9 into stable/20221013

Author: git apple-llvm automerger

lldb/source/Interpreter/CommandAlias.cpp

@@ -8,6 +8,7 @@
 
 #include "lldb/Interpreter/CommandAlias.h"
 
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/ErrorHandling.h"
 
 #include "lldb/Interpreter/CommandInterpreter.h"
@@ -211,9 +212,9 @@ std::pair<lldb::CommandObjectSP, OptionArgVectorSP> CommandAlias::Desugar() {
     // FIXME: This doesn't work if the original alias fills a slot in the
     // underlying alias, since this just appends the two lists.
     auto desugared = ((CommandAlias *)underlying.get())->Desugar();
-    auto options = GetOptionArguments();
-    options->insert(options->begin(), desugared.second->begin(),
-                    desugared.second->end());
+    OptionArgVectorSP options = std::make_shared<OptionArgVector>();
+    llvm::append_range(*options, *desugared.second);
+    llvm::append_range(*options, *GetOptionArguments());
     return {desugared.first, options};
   }
 

lldb/test/API/commands/command/nested_alias/TestNestedAlias.py

@@ -101,3 +101,7 @@ def cleanup():
         self.expect('command alias two expr -- 2')
         self.expect('command alias add_two two +')
         self.expect('add_two 3', patterns=[' = 5$'])
+        # Check that aliases to aliases to raw input commands work the second
+        # and subsequent times.
+        self.expect('add_two 3', patterns=[' = 5$'])
+        self.expect('add_two 3', patterns=[' = 5$'])