moving global identity function back into just the files in which it is

used

Cakefile

@@ -158,8 +158,6 @@ runTests = (CoffeeScript) ->
 
   # Convenience aliases.
   global.eq = global.strictEqual
-  global.id = (_) ->
-    if arguments.length is 1 then _ else Array::slice.call(arguments)
   global.CoffeeScript = CoffeeScript
 
   # Our test helper function for delimiting different test cases.

test/arguments.coffee

@@ -1,6 +1,9 @@
 # Arguments
 # ---------
 
+# shared identity function
+id = (_) -> if arguments.length is 1 then _ else Array::slice.call(arguments)
+
 test "basic argument passing tests", ->
   a = {}
   b = {}

test/conditionals.coffee

@@ -1,6 +1,9 @@
 # Conditionals
 # ------------
 
+# shared identity function
+id = (_) -> if arguments.length is 1 then _ else Array::slice.call(arguments)
+
 #### Basic Conditionals
 
 test "basic conditionals", ->

test/test_chaining.coffee

@@ -1,3 +1,11 @@
+# Chaining
+# --------
+
+# shared identity function
+id = (_) -> if arguments.length is 1 then _ else Array::slice.call(arguments)
+
+
+
 # Basic chained function calls.
 identityWrap = (x) ->
   -> x

test/test_splats.coffee

@@ -1,8 +1,9 @@
 # Splats
 # ------
-
 # note: splats in parameter lists of function definitions are tested in `arguments.coffee`
 
+# shared identity function
+id = (_) -> if arguments.length is 1 then _ else Array::slice.call(arguments)
 
 test "passing splats to functions", ->
   arrayEq [0..4], id id [0..4]...