Give autogen bots on chromium.fyi and client.nacl.sdk a separate clobber step

scripts/slave/recipes/chromium.fyi.misc_block.recipe_autogen.expected/CFI_Linux_CF.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--master",
       "chromium.fyi",
       "--builder",
       "CFI Linux CF",
@@ skipping 66 matching lines @@
       "@@@SET_BUILD_PROPERTY@got_v8_revision@\"801ada225ddc271c132c3a35f03975671d43e399\"@@@",
       "@@@SET_BUILD_PROPERTY@got_revision_cp@\"refs/heads/master@{#170242}\"@@@",
       "@@@SET_BUILD_PROPERTY@got_swarming_client_revision_cp@\"refs/heads/master@{#276089}\"@@@",
       "@@@SET_BUILD_PROPERTY@got_v8_revision_cp@\"refs/heads/master@{#43426}\"@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
+      "\nimport os, sys\nfrom common import chromium_utils # Error? See https://crbug.com/584783.\n\n\nif os.path.exists(sys.argv[1]):\n  chromium_utils.RemoveDirectory(sys.argv[1])\n",
+      "[SLAVE_BUILD]/src/out/Release"
+    ],
+    "name": "rmtree clobber",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os, sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@from common import chromium_utils # Error? See https://crbug.com/584783.@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@if os.path.exists(sys.argv[1]):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  chromium_utils.RemoveDirectory(sys.argv[1])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "[BUILD]/scripts/slave/runhooks_wrapper.py"
     ],
     "env": {
       "CHROMIUM_GYP_SYNTAX_CHECK": "1",
       "DEPOT_TOOLS_UPDATE": "0",
       "GYP_DEFINES": " component=static_library",
       "LANDMINES_VERBOSE": "1",
       "LLVM_DOWNLOAD_GOLD_PLUGIN": "1"
     },
     "name": "gclient runhooks wrapper"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/tools/runit.py",
       "--show-path",
       "python",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/cleanup_temp.py"
     ],
     "name": "cleanup_temp"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/compile.py",
       "--target",
       "Release",
-      "--clobber",
       "chromium_builder_asan"
     ],
     "name": "compile"
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/chromium/cf_archive_build.py",
       "--target",
       "Release",
       "--build-properties={\"buildername\":\"CFI Linux CF\",\"buildnumber\":\"42\",\"got_revision\":\"f27fede2220bcd326aee3e86ddfd4ebd0fe58cb9\",\"got_revision_cp\":\"refs/heads/master@{#170242}\",\"got_swarming_client_revision\":\"a0ee5d99f1d4b38ddaa4c759c837980b63b99566\",\"got_swarming_client_revision_cp\":\"refs/heads/master@{#276089}\",\"got_v8_revision\":\"801ada225ddc271c132c3a35f03975671d43e399\",\"got_v8_revision_cp\":\"refs/heads/master@{#43426}\",\"got_webkit_revision\":\"5e2293dffc3cd07d37fbedea3b500f0eb650614d\",\"got_webkit_revision_cp\":\"refs/heads/master@{#124383}\",\"mastername\":\"chromium.fyi\",\"primary_repo\":\"\",\"recipe\":\"chromium.fyi.misc_block.recipe_autogen\",\"revision\":\"123456789abcdef\",\"slavename\":\"TestSlave\"}",
       "--factory-properties={\"blink_config\":\"chromium\",\"cf_archive_build\":true,\"cf_archive_name\":\"cfi\",\"gclient_env\":{\"CHROMIUM_GYP_SYNTAX_CHECK\":\"1\",\"DEPOT_TOOLS_UPDATE\":\"0\",\"GYP_DEFINES\":\" component=static_library\",\"LANDMINES_VERBOSE\":\"1\",\"LLVM_DOWNLOAD_GOLD_PLUGIN\":\"1\"},\"gs_acl\":\"public-read\",\"gs_bucket\":\"gs://chromium-browser-cfi\"}"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "ClusterFuzz Archive"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]