Enable GN ASAN builds for Linux

runtime/BUILD.gn

 # Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 declare_args() {
   # Instead of using is_debug, we introduce a different flag for specifying a
   # Debug build of Dart so that clients can still use a Release build of Dart
   # while themselves doing a Debug build.
   dart_debug = false
 
@@ skipping 163 matching lines @@
         "-O1",
       ]
     } else {
       cflags += [
         "-O3",
       ]
     }
 
     if (defined(is_asan) && is_asan) {
       ldflags = [
-        "-Wl,-u_sanitizer_options_link_helper",
         "-fsanitize=address",
       ]
     }
   }
 }
 
 template("libdart_library") {
   extra_configs = []
   if (defined(invoker.extra_configs)) {
     extra_configs += invoker.extra_configs
@@ skipping 127 matching lines @@
     "vm:libdart_lib_nosnapshot",
     "vm:libdart_lib",
     "vm:libdart_vm",
     "vm:libdart_platform",
     "third_party/double-conversion/src:libdouble_conversion",
   ]
   sources = [
     "vm/libdart_dependency_helper.cc",
   ]
 }