Show selected target, update unit test for API change

Author: JDevlieghere

lldb/source/Plugins/Protocol/MCP/Tool.cpp

@@ -130,13 +130,15 @@ DebuggerListTool::Call(const protocol::ToolArguments &args) {
 
     os << "- debugger " << i << '\n';
 
-    const TargetList &target_list = debugger_sp->GetTargetList();
+    TargetList &target_list = debugger_sp->GetTargetList();
     const size_t num_targets = target_list.GetNumTargets();
     for (size_t j = 0; j < num_targets; ++j) {
       lldb::TargetSP target_sp = target_list.GetTargetAtIndex(j);
       if (!target_sp)
         continue;
       os << "    - target " << j;
+      if (target_sp == target_list.GetSelectedTarget())
+        os << " (selected)";
       // Append the module path if we have one.
       if (Module *exe_module = target_sp->GetExecutableModulePointer())
         os << " " << exe_module->GetFileSpec().GetPath();

lldb/unittests/Protocol/ProtocolMCPServerTest.cpp

@@ -46,9 +46,10 @@ class TestTool : public mcp::Tool {
   using mcp::Tool::Tool;
 
   virtual llvm::Expected<mcp::protocol::TextResult>
-  Call(const llvm::json::Value *args) override {
+  Call(const ToolArguments &args) override {
     std::string argument;
-    if (const json::Object *args_obj = args->getAsObject()) {
+    if (const json::Object *args_obj =
+            std::get<json::Value>(args).getAsObject()) {
       if (const json::Value *s = args_obj->get("arguments")) {
         argument = s->getAsString().value_or("");
       }
@@ -66,7 +67,7 @@ class ErrorTool : public mcp::Tool {
   using mcp::Tool::Tool;
 
   virtual llvm::Expected<mcp::protocol::TextResult>
-  Call(const llvm::json::Value *args) override {
+  Call(const ToolArguments &args) override {
     return llvm::createStringError("error");
   }
 };
@@ -77,7 +78,7 @@ class FailTool : public mcp::Tool {
   using mcp::Tool::Tool;
 
   virtual llvm::Expected<mcp::protocol::TextResult>
-  Call(const llvm::json::Value *args) override {
+  Call(const ToolArguments &args) override {
     mcp::protocol::TextResult text_result;
     text_result.content.emplace_back(mcp::protocol::TextContent{{"failed"}});
     text_result.isError = true;