Fix NaCl executable linkages under ASAN.

src/trusted/debug_stub/BUILD.gn

Index: src/trusted/debug_stub/BUILD.gn
diff --git a/src/trusted/debug_stub/BUILD.gn b/src/trusted/debug_stub/BUILD.gn
index 2594c1f235c2b035bedbf56604cc5e5f02da5231..c24839ce015bca6261c865f0424ed99f5700a322 100644
--- a/src/trusted/debug_stub/BUILD.gn
+++ b/src/trusted/debug_stub/BUILD.gn
@@ -1,6 +1,7 @@
 # Copyright (c) 2014 The Native ClientAuthors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
+import("//build/config/sanitizers/sanitizers.gni")
 
 static_library("debug_stub") {
   sources = [
@@ -45,8 +46,12 @@ executable("gdb_rsp_unittest") {
   ]
 
   deps = [
+    ":debug_stub",
     "//build/config/nacl:nacl_base",
+
+    # All executables must have the sanitizer deps to properly link in
+    # asan mode (this target will be empty in other cases).
+    "//build/config/sanitizers:deps",

[Nico, 2016/06/08 23:38:45]

huh, i thought your CL: https://codereview.chromium.org/2031903002/ made it so
that instrumented_libraries:prebuilt_link_helper is a dep of all executables
which I thought did this. If it didn't, this probably isn't the only executable
that needs this (? – did you do a local build of 'all'?)

     "//build/win:default_exe_manifest",
-    ":debug_stub",
   ]
 }