Added stride(from: through: by:)

Author: dwarfland

Source/Functions.swift

@@ -177,15 +177,14 @@ public func stride(from start: Int, to end: Int, by stride: Int) -> ISequence<In
 	}
 }
 
-//75284: Silver: can't overload global func on parameter names?
-/*public func stride(from start: Int, through end: Int, by stride: Int) -> ISequence<Int> {
+public func stride(from start: Int, through end: Int, by stride: Int) -> ISequence<Int> {
 	precondition(stride > 0, "'by' must be larger than zero")
 	var i = start
 	while i <= end {
 		__yield i;
 		i += stride
 	}
-}*/
+}
 
 public func stride(from start: Double, to end: Double, by stride: Double) -> ISequence<Double> {
 	precondition(stride > 0, "'by' must be larger than zero")
@@ -197,14 +196,14 @@ public func stride(from start: Double, to end: Double, by stride: Double) -> ISe
 }
 
 //75284: Silver: can't overload global func on parameter names?
-/*public func stride(from start: Double, through end: Double, by stride: Double) -> ISequence<Double> {
+public func stride(from start: Double, through end: Double, by stride: Double) -> ISequence<Double> {
 	precondition(stride > 0, "'by' must be larger than zero")
 	var i = start
 	while i <= end {
 		__yield i;
 		i += stride
 	}
-}*/
+}
 
 #if TOFFEE