[gn build] Port 69be352a

llvm/utils/gn/secondary/llvm/lib/ExecutionEngine/Orc/BUILD.gn

@@ -18,6 +18,7 @@ static_library("Orc") {
     "Core.cpp",
     "DebugObjectManagerPlugin.cpp",
     "DebugUtils.cpp",
+    "DebuggerSupportPlugin.cpp",
     "ELFNixPlatform.cpp",
     "EPCDebugObjectRegistrar.cpp",
     "EPCDynamicLibrarySearchGenerator.cpp",