GN: don't write separate files for non-binary targets

tools/gn/qt_creator_writer.cc

Index: tools/gn/qt_creator_writer.cc
diff --git a/tools/gn/qt_creator_writer.cc b/tools/gn/qt_creator_writer.cc
index 96f247f5719a0a580fa874b37ce39bb6351b1e02..db0c9b86b31f83e3a3ef1494cbb6fd8f9ae29802 100644
--- a/tools/gn/qt_creator_writer.cc
+++ b/tools/gn/qt_creator_writer.cc
@@ -32,7 +32,7 @@ base::FilePath::CharType kDefinesFileSuffix[] = FILE_PATH_LITERAL(".config");
 
 // static
 bool QtCreatorWriter::RunAndWriteFile(const BuildSettings* build_settings,
-                                      const Builder* builder,
+                                      const Builder& builder,
                                       Err* err,
                                       const std::string& root_target) {
   base::FilePath project_dir =
@@ -60,7 +60,7 @@ bool QtCreatorWriter::RunAndWriteFile(const BuildSettings* build_settings,
 }
 
 QtCreatorWriter::QtCreatorWriter(const BuildSettings* build_settings,
-                                 const Builder* builder,
+                                 const Builder& builder,
                                  const base::FilePath& project_prefix,
                                  const std::string& root_target_name)
     : build_settings_(build_settings),
@@ -81,7 +81,7 @@ void QtCreatorWriter::CollectDeps(const Target* target) {
 }
 
 bool QtCreatorWriter::DiscoverTargets() {
-  auto all_targets = builder_->GetAllResolvedTargets();
+  auto all_targets = builder_.GetAllResolvedTargets();
 
   if (root_target_name_.empty()) {
     targets_ = std::set<const Target*>(all_targets.begin(), all_targets.end());
@@ -160,7 +160,7 @@ void QtCreatorWriter::Run() {
 
   for (const Target* target : targets_) {
     if (target->toolchain()->label() !=
-        builder_->loader()->GetDefaultToolchain())
+        builder_.loader()->GetDefaultToolchain())
       continue;
     HandleTarget(target);
   }