Adapt checker query

Checker query is updated to only trigger non PolyGerrit checkers if
and only if non frontend files are included in the change.

Bug: Issue 14094
Change-Id: I3e8ba87ff410813093f0a50c5728c69ace00f963
diff --git a/jenkins/checker_definitions.txt b/jenkins/checker_definitions.txt
index f2cbf79..d313cc7 100644
--- a/jenkins/checker_definitions.txt
+++ b/jenkins/checker_definitions.txt
@@ -5,7 +5,7 @@
     "name": "RBE Build/Tests",
     "description": "Builds the code base and executes unit/integration tests on RBE",
     "repository": "gerrit",
-    "query": "branch:master",
+    "query": "(not dir:polygerrit-ui) AND (branch:master)",
     "blocking": []
   }
 
@@ -16,7 +16,7 @@
     "name": "Build/Tests",
     "description": "Builds the code base and executes unit/integration tests",
     "repository": "gerrit",
-    "query": "branch:stable-2.16 OR branch:stable-3.1 OR branch:stable-3.2 OR branch:stable-3.3 OR branch:master",
+    "query": "(not dir:polygerrit-ui) AND (branch:stable-2.16 OR branch:stable-3.1 OR branch:stable-3.2 OR branch:stable-3.3 OR branch:master)",
     "blocking": []
   }
 
@@ -38,7 +38,7 @@
     "name": "PolyGerrit UI Tests",
     "description": "Executes unit/integration tests for PolyGerrit UI",
     "repository": "gerrit",
-    "query": "(directory:polygerit-ui OR file:WORKSPACE) AND (branch:stable-2.16 OR branch:stable-3.1 OR branch:stable-3.2 OR branch:stable-3.3 OR branch:master)",
+    "query": "(dir:polygerrit-ui OR file:WORKSPACE) AND (branch:stable-2.16 OR branch:stable-3.1 OR branch:stable-3.2 OR branch:stable-3.3 OR branch:master)",
     "blocking": []
   }