Add missing arg-flags to split-cmdline

Author: j-hui

utils/dev-scripts/split-cmdline

@@ -84,19 +84,26 @@ def main():
                 "-L",
                 "-Xcc",
                 "-Xclang",
+                "-Xcxx",
                 "-Xfrontend",
                 "-Xlinker",
                 "-Xllvm",
+                "-Xswiftc",
                 "-add_ast_path",
                 "-arch",
+                "-blocklist-file",
+                "-clang-build-session-file",
                 "-emit-ir",
                 "-emit-sil",
+                "-enable-experimental-feature",
+                "-file-compilation-dir",
                 "-filelist",
                 "-fileno",
                 "-framework",
                 "-import-objc-header",
                 "-iquote",
                 "-isysroot",
+                "-ivfsoverlay",
                 "-macosx_version_min",
                 "-module-link-name",
                 "-module-name",
@@ -111,6 +118,7 @@ def main():
                 "-syslibroot",
                 "-target",
                 "-target-sdk-version",
+                "-target-sdk-name",
                 "-working-directory",
                 "-x",
             ]