🐜 GN: Make write_runtime_deps take effect only a target is resolved

tools/gn/target.cc

Index: tools/gn/target.cc
diff --git a/tools/gn/target.cc b/tools/gn/target.cc
index 18c353eac05d3b58732db4b1a2883040be51664a..cac9c644db6cdd31d42669ba053743e5667755be 100644
--- a/tools/gn/target.cc
+++ b/tools/gn/target.cc
@@ -324,6 +324,10 @@ bool Target::OnResolved(Err* err) {
     CheckSourcesGenerated();
   }
 
+  if (!write_runtime_deps_output_.value().empty()) {

[brettw, 2016/04/19 18:29:39]

No {}

[agrieve, 2016/04/20 00:45:02]

Done. (a hard habit to break apparently!)

+    g_scheduler->AddWriteRuntimeDepsTarget(this);
+  }
+
   return true;
 }