Issue #587 ... Removing the Attempted Removal of Erroneous Double Parens.

src/nodes.coffee

@@ -205,7 +205,6 @@ exports.Expressions = class Expressions extends BaseNode
     o.scope   = new Scope(null, this, null)
     code      = @compileWithDeclarations(o)
     code      = code.replace(TRAILING_WHITESPACE, '')
-    code      = code.replace(DOUBLE_PARENS, '($1)')
     if o.noWrap then code else "(function() {\n#{code}\n})();\n"
 
   # Compile the expressions body for the contents of a function, with
@@ -1539,9 +1538,6 @@ TAB = '  '
 # with Git.
 TRAILING_WHITESPACE = /[ \t]+$/gm
 
-# Obvious redundant parentheses should be removed.
-DOUBLE_PARENS = /\(\(([^\(\)\n]*)\)\)/g
-
 # Keep these identifier regexes in sync with the Lexer.
 IDENTIFIER = /^[a-zA-Z\$_](\w|\$)*$/
 NUMBER     = /^(((\b0(x|X)[0-9a-fA-F]+)|((\b[0-9]+(\.[0-9]+)?|\.[0-9]+)(e[+\-]?[0-9]+)?)))\b$/i