add test (closes #4353)

tests/unit/src/unit/issues/Issue4353.hx

@@ -0,0 +1,37 @@
+package unit.issues;
+
+private class Iter1 {
+	public var i : Int;
+	public var e : Int;
+	public inline function new(i, e) {this.i = i; this.e = e;}
+	public inline function hasNext() return i < e;
+	public inline function next() {var j = i; i++; return j;}
+}
+
+private class Iter2 {
+	public var i : Int;
+	public var e : Int;
+	var j : Int;
+	public inline function new(i, e) {this.i = i; this.e = e;}
+	public inline function hasNext() return i < e;
+	public inline function next() {j = i; i++; return j;}
+}
+
+
+class Issue4353 extends Test {
+	function test() {
+		var s = 0;
+		for (i in new Iter1(0, 10)) {
+			s += i;
+		}
+		eq(45, s);
+	}
+
+	function test2() {
+		var s = 0;
+		for (i in new Iter2(0, 10)) {
+			s += i;
+		}
+		eq(45, s);
+	}
+}