move lld-incompatible linker flags inside !use_lld clause

build/config/compiler/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. 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/android/config.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/nacl/config.gni")
 import("//build/toolchain/cc_wrapper.gni")
 import("//build/toolchain/toolchain.gni")
@@ skipping 1260 matching lines @@
         # Set the number of LTCG code-gen threads to eight. The default is four.
         # This gives a 5-10% link speedup.
         "/cgthreads:8",
       ]
       if (use_incremental_wpo) {
         # Incremental Link-time code generation.
         common_optimize_on_ldflags += [ "/LTCG:INCREMENTAL" ]
       } else {
         common_optimize_on_ldflags += [ "/LTCG" ]  # Link-time code generation.
       }
-    }
-    if (full_wpo_on_official) {
-      if (use_incremental_wpo) {
-        arflags = [ "/LTCG:INCREMENTAL" ]
-      } else {
-        arflags = [ "/LTCG" ]
+      if (full_wpo_on_official) {
+        if (use_incremental_wpo) {
+          arflags = [ "/LTCG:INCREMENTAL" ]
+        } else {
+          arflags = [ "/LTCG" ]
+        }
       }
     }
   }
 } else {
   common_optimize_on_cflags = []
   common_optimize_on_ldflags = []
 
   if (is_android) {
     # TODO(jdduke) Re-enable on mips after resolving linking
     # issues with libc++ (crbug.com/456380).
@@ skipping 337 matching lines @@
 
 if (is_ios || is_mac) {
   # On Mac and iOS, this enables support for ARC (automatic ref-counting).
   # See http://clang.llvm.org/docs/AutomaticReferenceCounting.html.
   config("enable_arc") {
     common_flags = [ "-fobjc-arc" ]
     cflags_objc = common_flags
     cflags_objcc = common_flags
   }
 }