[bazel][lldb] Port llvm#162730: tablegen for lldb-server platform ops (llvm#164832)

Author: rupprecht

utils/bazel/llvm-project-overlay/lldb/BUILD.bazel

@@ -979,14 +979,23 @@ cc_binary(
 )
 
 gentbl_cc_library(
-    name = "lldb_server_opts_gen",
+    name = "lldb_server_llgs_opts_gen",
     strip_include_prefix = ".",
     tbl_outs = {"LLGSOptions.inc": ["-gen-opt-parser-defs"]},
     tblgen = "//llvm:llvm-tblgen",
     td_file = "tools/lldb-server/LLGSOptions.td",
     deps = ["//llvm:OptParserTdFiles"],
 )
 
+gentbl_cc_library(
+    name = "lldb_server_platform_opts_gen",
+    strip_include_prefix = ".",
+    tbl_outs = {"PlatformOptions.inc": ["-gen-opt-parser-defs"]},
+    tblgen = "//llvm:llvm-tblgen",
+    td_file = "tools/lldb-server/PlatformOptions.td",
+    deps = ["//llvm:OptParserTdFiles"],
+)
+
 cc_binary(
     name = "lldb-server",
     srcs = glob([
@@ -1005,7 +1014,8 @@ cc_binary(
         ":Interpreter",
         ":Utility",
         ":Version",
-        ":lldb_server_opts_gen",
+        ":lldb_server_llgs_opts_gen",
+        ":lldb_server_platform_opts_gen",
         "//lldb:Target",
         "//lldb:TargetHeaders",
         "//lldb/source/Plugins:PluginCPlusPlusLanguage",