ignore exists?

Author: dnolen

src/main/clojure/cljs/analyzer.cljc

@@ -1038,7 +1038,9 @@
          (when (contains? locals (-> sym name symbol))
            (warning :js-shadowed-by-local env {:name sym}))
          (let [pre (->> (string/split (name sym) #"\.") (map symbol) vec)]
-           (when-not (has-extern? pre)
+           (when (and (not (has-extern? pre))
+                      ;; ignore exists? usage
+                      (not (-> sym meta ::no-resolve)))
              (swap! env/*compiler* update-in
                (into [::namespaces (-> env :ns :name) :externs] pre) merge {}))
            (merge

src/test/clojure/cljs/analyzer_tests.clj

@@ -1085,12 +1085,14 @@
                :externs ["src/test/externs/test.js"]
                :warnings ws
                :with-core? true})]
-    (is (empty? @ws)))
+    (is (empty? @ws))
+    (is (not (string/includes? res "cljs.core"))))
   (let [ws  (atom [])
         res (infer-test-helper
               {:forms '[(ns cjls-2767.core)
                         (deftype Foo [])]
                :externs ["src/test/externs/test.js"]
                :warnings ws
                :with-core? true})]
-    (is (empty? @ws))))
+    (is (empty? @ws))
+    (is (not (string/includes? res "cljs.core")))))