Don't use --gdb-index for Gold and LLVM linker

build/config/compiler/BUILD.gn

Index: build/config/compiler/BUILD.gn
diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index 08e9a9ef988737dcc6eaedee39e7b0021f20df0b..5cc1ca1842565bf76f642588c689f47f8125ea1b 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -1658,7 +1658,8 @@ config("symbols") {
     # "third_party/binutils/Linux_x64/Release/bin/ld.gold: warning:
     # /tmp/lto-llvm-0b5201.o: corrupt debug info in .debug_info"
     if (!is_mac && !is_ios && !is_nacl && target_cpu != "x86" &&
-        !allow_posix_link_time_opt && !is_official_build) {
+        (use_gold || use_lld) && !allow_posix_link_time_opt &&
+        !is_official_build) {
       ldflags += [ "-Wl,--gdb-index" ]
     }
   }