[gn] port 2675dcd (lldb-server PlatformOptions.inc)

Author: nico

llvm/utils/gn/secondary/lldb/tools/lldb-server/BUILD.gn

@@ -6,13 +6,19 @@ tablegen("LLGSOptions") {
   args = [ "-gen-opt-parser-defs" ]
 }
 
+tablegen("PlatformOptions") {
+  visibility = [ ":lldb-server" ]
+  args = [ "-gen-opt-parser-defs" ]
+}
+
 executable("lldb-server") {
   configs += [
     "//llvm/utils/gn/build:clang_code",
     "//llvm/utils/gn/build:lldb_code",
   ]
   deps = [
     ":LLGSOptions",
+    ":PlatformOptions",
 
     #"//lldb/include/lldb/Host:Config",
     "//lldb/source/Host",