GN: Generate appropriate .dSYMs for .frameworks and .apps

build/config/mac/rules.gni

Index: build/config/mac/rules.gni
diff --git a/build/config/mac/rules.gni b/build/config/mac/rules.gni
index dd7b4a55508c0830deb8513188dd392740e807b6..cea5ec296d241227c079428ff2255c016988027d 100644
--- a/build/config/mac/rules.gni
+++ b/build/config/mac/rules.gni
@@ -282,6 +282,7 @@ template("mac_framework_bundle") {
   _framework_target = _target_name
   _framework_name = _output_name + ".framework"
   _framework_base_dir = "$root_out_dir/$_framework_name"
+  dsym_name = "${_framework_name}.dSYM"
   if (defined(invoker.framework_version) && invoker.framework_version != "") {
     _framework_version = invoker.framework_version
     _framework_root_dir = _framework_base_dir + "/Versions/$_framework_version"
@@ -503,6 +504,8 @@ template("mac_app_bundle") {
     assert(false, "Unsupported packge_type: " + packge_type)
   }
 
+  dsym_name = "${_output_name}.${_output_extension}.dSYM"
+
   _executable_target = target_name + "_executable"
   _executable_bundle_data = _executable_target + "_bundle_data"