[gn build] Port 039cfe8

Author: llvmgnsyncbot

llvm/utils/gn/secondary/lldb/source/Target/BUILD.gn

@@ -61,6 +61,7 @@ static_library("Target") {
     "RegisterFlags.cpp",
     "RegisterNumber.cpp",
     "RemoteAwarePlatform.cpp",
+    "ScriptedThreadPlan.cpp",
     "SectionLoadHistory.cpp",
     "SectionLoadList.cpp",
     "StackFrame.cpp",
@@ -82,7 +83,6 @@ static_library("Target") {
     "ThreadPlanCallFunctionUsingABI.cpp",
     "ThreadPlanCallOnFunctionExit.cpp",
     "ThreadPlanCallUserExpression.cpp",
-    "ThreadPlanPython.cpp",
     "ThreadPlanRunToAddress.cpp",
     "ThreadPlanShouldStopHere.cpp",
     "ThreadPlanStack.cpp",