[GN]: Support for loadable modules

tools/gn/commands.cc

Index: tools/gn/commands.cc
diff --git a/tools/gn/commands.cc b/tools/gn/commands.cc
index ab22ebe43c8851b799c8d899404c199567781442..3778d5bb6445574e563e4f6788e3280b4b99bda1 100644
--- a/tools/gn/commands.cc
+++ b/tools/gn/commands.cc
@@ -190,6 +190,10 @@ bool GetTargetTypeFilter(Target::OutputType* type) {
     *type = Target::SHARED_LIBRARY;
     return true;
   }
+  if (value == "loadable_module") {
+    *type = Target::LOADABLE_MODULE;
+    return true;
+  }
   if (value == "static_library") {
     *type = Target::STATIC_LIBRARY;
     return true;