Add a copy of the "WinClang64 (dbg)" bot to the main waterfall.

scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_win_win_clang.json

Index: scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_win_win_clang.json
diff --git a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_win_win_clang.json b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_win_win_clang.json
index 95c3c5e9733b0b769f7be1e4381f6a89db152fff..1797bf5ba475a71193a3f34d5802dc943f2ae6b2 100644
--- a/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_win_win_clang.json
+++ b/scripts/slave/recipes/chromium_trybot.expected/full_tryserver_chromium_win_win_clang.json
@@ -150,6 +150,7 @@
       "--",
       "--build-config-fs",
       "Debug_x64",
+      "--use-src-side-runtest-py",
       "--paths",
       "{\"checkout\": \"[SLAVE_BUILD]\\\\src\", \"runit.py\": \"RECIPE_PACKAGE_REPO[build]\\\\scripts\\\\tools\\\\runit.py\", \"runtest.py\": \"RECIPE_PACKAGE_REPO[build]\\\\scripts\\\\slave\\\\runtest.py\"}",
       "--properties",
@@ -167,13 +168,13 @@
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "[SLAVE_BUILD]\\src\\testing\\buildbot\\chromium.fyi.json",
+      "[SLAVE_BUILD]\\src\\testing\\buildbot\\chromium.win.json",
       "/path/to/tmp/json"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "read test spec",
     "~followup_annotations": [
-      "@@@STEP_TEXT@path: [SLAVE_BUILD]\\src\\testing\\buildbot\\chromium.fyi.json@@@",
+      "@@@STEP_TEXT@path: [SLAVE_BUILD]\\src\\testing\\buildbot\\chromium.win.json@@@",
       "@@@STEP_LOG_LINE@json.output@{}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]