be less specific around int coercion fns (#294)

cljs.tools.reader uses `int` to coerce numeric unicode chars, with better inference of JS APIs this triggered a numeric warning. But this warning is a bit bogus in that `int` is for coercion anyway. Clojure is vague about `int` behavior, we should be equally vague.

Author: swannodette

src/main/cljs/cljs/core.cljs

@@ -2932,22 +2932,22 @@ reduces them without incurring seq initialization"
     (Math/ceil q)))
 
 (defn int
-  "Coerce to int by stripping decimal places."
+  "Coerce to int."
   [x]
   (bit-or x 0))
 
 (defn unchecked-int
-  "Coerce to int by stripping decimal places."
+  "Coerce to int."
   [x]
   (fix x))
 
 (defn long
-  "Coerce to long by stripping decimal places. Identical to `int'."
+  "Coerce to long. Identical to `int'."
   [x]
   (fix x))
 
 (defn unchecked-long
-  "Coerce to long by stripping decimal places. Identical to `int'."
+  "Coerce to long. Identical to `int'."
   [x]
   (fix x))
 

src/main/clojure/cljs/core.cljc

@@ -1236,8 +1236,9 @@
   ([x y] (core/list 'js* "(~{} | ~{})" x y))
   ([x y & more] `(bit-or (bit-or ~x ~y) ~@more)))
 
-(core/defmacro ^::ana/numeric int [x]
-  `(bit-or ~x 0))
+(core/defmacro int
+  [x]
+  (core/list 'js* "(~{} | 0)" x))
 
 (core/defmacro ^::ana/numeric bit-xor
   ([x y] (core/list 'js* "(~{} ^ ~{})" x y))