V8: Move gn-peek step behind mb step

scripts/slave/recipes/v8.expected/full_client_v8_V8_Linux___predictable_bisect.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--master",
       "client.v8",
       "--builder",
       "V8 Linux - predictable",
@@ skipping 112 matching lines @@
       "GYP_DEFINES": "clang=1 gomadir='[CACHE]/cipd/goma' target_arch=ia32 use_goma=1 v8_enable_verify_predictable=1 v8_target_arch=ia32",
       "GYP_GENERATORS": "ninja",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient runhooks"
   },
   {
     "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",
       "[DEPOT_TOOLS]/gn.py",
       "--root=[SLAVE_BUILD]/v8",
       "gen",
       "[TMP_BASE]/v8_gn_tmp_1",
       "--args=is_debug=false target_cpu=\"x86\" use_goma=true goma_dir=\"[CACHE]/cipd/goma\""
     ],
     "name": "gn"
   },
   {
     "cmd": [
@@ skipping 16 matching lines @@
     ],
     "name": "rmtree [TMP_BASE]/v8_gn_tmp_1",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import shutil, sys@@@",
       "@@@STEP_LOG_LINE@python.inline@shutil.rmtree(sys.argv[1])@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
-    "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"
-  },
-  {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]/v8",
       "--output-json",
       "/path/to/tmp/json"
     ],
@@ skipping 459 matching lines @@
       "GYP_DEFINES": "clang=1 gomadir='[CACHE]/cipd/goma' target_arch=ia32 use_goma=1 v8_enable_verify_predictable=1 v8_target_arch=ia32",
       "GYP_GENERATORS": "ninja",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "Bisect a0.gclient runhooks",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {
+    "cmd": [
+      "python",
+      "-u",
+      "[DEPOT_TOOLS]/gn.py",
+      "--root=[SLAVE_BUILD]/v8",
+      "gen",
+      "[TMP_BASE]/v8_gn_tmp_2",
+      "--args=is_debug=false target_cpu=\"x86\" use_goma=true goma_dir=\"[CACHE]/cipd/goma\""
+    ],
+    "name": "Bisect a0.gn",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/v8/tools/gyp_flag_compare.py",
+      "[TMP_BASE]/v8_gn_tmp_2",
+      "[SLAVE_BUILD]/v8/out/Release",
+      "all",
+      "all"
+    ],
+    "name": "Bisect a0.compare build flags (fyi)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport shutil, sys\nshutil.rmtree(sys.argv[1])\n",
+      "[TMP_BASE]/v8_gn_tmp_2"
+    ],
+    "name": "Bisect a0.rmtree [TMP_BASE]/v8_gn_tmp_2",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import shutil, sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@shutil.rmtree(sys.argv[1])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]/v8",
       "--output-json",
       "/path/to/tmp/json"
     ],
@@ skipping 232 matching lines @@
       "GYP_DEFINES": "clang=1 gomadir='[CACHE]/cipd/goma' target_arch=ia32 use_goma=1 v8_enable_verify_predictable=1 v8_target_arch=ia32",
       "GYP_GENERATORS": "ninja",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "Bisect a2.gclient runhooks",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {
+    "cmd": [
+      "python",
+      "-u",
+      "[DEPOT_TOOLS]/gn.py",
+      "--root=[SLAVE_BUILD]/v8",
+      "gen",
+      "[TMP_BASE]/v8_gn_tmp_3",
+      "--args=is_debug=false target_cpu=\"x86\" use_goma=true goma_dir=\"[CACHE]/cipd/goma\""
+    ],
+    "name": "Bisect a2.gn",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/v8/tools/gyp_flag_compare.py",
+      "[TMP_BASE]/v8_gn_tmp_3",
+      "[SLAVE_BUILD]/v8/out/Release",
+      "all",
+      "all"
+    ],
+    "name": "Bisect a2.compare build flags (fyi)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport shutil, sys\nshutil.rmtree(sys.argv[1])\n",
+      "[TMP_BASE]/v8_gn_tmp_3"
+    ],
+    "name": "Bisect a2.rmtree [TMP_BASE]/v8_gn_tmp_3",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import shutil, sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@shutil.rmtree(sys.argv[1])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]/v8",
       "--output-json",
       "/path/to/tmp/json"
     ],
@@ skipping 267 matching lines @@
       "GYP_DEFINES": "clang=1 gomadir='[CACHE]/cipd/goma' target_arch=ia32 use_goma=1 v8_enable_verify_predictable=1 v8_target_arch=ia32",
       "GYP_GENERATORS": "ninja",
       "PATH": "%(PATH)s:RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "Bisect a1.gclient runhooks",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {
+    "cmd": [
+      "python",
+      "-u",
+      "[DEPOT_TOOLS]/gn.py",
+      "--root=[SLAVE_BUILD]/v8",
+      "gen",
+      "[TMP_BASE]/v8_gn_tmp_4",
+      "--args=is_debug=false target_cpu=\"x86\" use_goma=true goma_dir=\"[CACHE]/cipd/goma\""
+    ],
+    "name": "Bisect a1.gn",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/v8/tools/gyp_flag_compare.py",
+      "[TMP_BASE]/v8_gn_tmp_4",
+      "[SLAVE_BUILD]/v8/out/Release",
+      "all",
+      "all"
+    ],
+    "name": "Bisect a1.compare build flags (fyi)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport shutil, sys\nshutil.rmtree(sys.argv[1])\n",
+      "[TMP_BASE]/v8_gn_tmp_4"
+    ],
+    "name": "Bisect a1.rmtree [TMP_BASE]/v8_gn_tmp_4",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import shutil, sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@shutil.rmtree(sys.argv[1])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]/v8",
       "--output-json",
       "/path/to/tmp/json"
     ],
@@ skipping 99 matching lines @@
     "~followup_annotations": [
       "@@@STEP_LINK@a2@https://chromium.googlesource.com/v8/v8/+/a2@@@"
     ]
   },
   {
     "name": "$result",
     "reason": "Failures or flakes in build.",
     "status_code": 1
   }
 ]