first draft of mandatory parentheses around function definition param lists -- all tests pass

test/fixtures/execution/test_functions.coffee

@@ -1,6 +1,6 @@
 x: 1
 y: {}
-y.x: => 3
+y.x: () => 3
 
 print x is 1
 print typeof(y.x) is 'function'
@@ -9,17 +9,17 @@ print y.x.name is 'x'
 
 
 # The empty function should not cause a syntax error.
-=>
+() =>
 
 
 obj: {
   name: "Fred"
 
-  bound: =>
-    (==> print(this.name is "Fred"))()
+  bound: () =>
+    (() ==> print(this.name is "Fred"))()
 
-  unbound: =>
-    (=> print(!this.name?))()
+  unbound: () =>
+    (() => print(!this.name?))()
 }
 
 obj.unbound()
@@ -29,18 +29,18 @@ obj.bound()
 # The named function should be cleared out before a call occurs:
 
 # Python decorator style wrapper that memoizes any function
-memoize: fn =>
+memoize: (fn) =>
   cache: {}
   self: this
-  args... =>
+  (args...) =>
     key: args.toString()
     return cache[key] if cache[key]
     cache[key] = fn.apply(self, args)
 
 Math: {
-  Add: a, b => a + b
-  AnonymousAdd: (a, b => a + b)
-  FastAdd: memoize a, b => a + b
+  Add: (a, b) => a + b
+  AnonymousAdd: ((a, b) => a + b)
+  FastAdd: memoize (a, b) => a + b
 }
 
 print Math.Add(5, 5) is 10