[build] Disable incremental linking for cctest and unittests

test/unittests/BUILD.gn

 # Copyright 2016 The V8 project 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("../../gni/v8.gni")
 
 v8_executable("unittests") {
   testonly = true
 
   sources = [
@@ skipping 130 matching lines @@
   } else if (v8_current_cpu == "mips64" || v8_current_cpu == "mips64el") {
     sources += [ "compiler/mips64/instruction-selector-mips64-unittest.cc" ]
   } else if (v8_current_cpu == "x64") {
     sources += [ "compiler/x64/instruction-selector-x64-unittest.cc" ]
   } else if (v8_current_cpu == "ppc" || v8_current_cpu == "ppc64") {
     sources += [ "compiler/ppc/instruction-selector-ppc-unittest.cc" ]
   } else if (v8_current_cpu == "s390" || v8_current_cpu == "s390x") {
     sources += [ "compiler/s390/instruction-selector-s390-unittest.cc" ]
   }
 
+  no_incremental_linking = true
+
   configs = [
     "../..:external_config",
     "../..:internal_config_base",
   ]
 
   # TODO(machenbach): Translate from gyp.
   #['OS=="aix"', {
   #  'ldflags': [ '-Wl,-bbigtoc' ],
   #}],
 
@@ skipping 22 matching lines @@
 
     # Suppress warnings about importing locally defined symbols.
     if (is_component_build) {
       ldflags = [
         "/ignore:4049",
         "/ignore:4217",
       ]
     }
   }
 }