Added test for String.split(Char)

libraries/stdlib/test/StringTest.kt

@@ -52,4 +52,18 @@ class StringTest {
         assertEquals(3, whitespaceCount)
     }
 
+    test fun testSplitByChar() {
+        val s = "ab\n[|^$&\\]^cd"
+        var list = s.split('b');
+        assertEquals(2, list.size)
+        assertEquals("a", list[0])
+        assertEquals("\n[|^$&\\]^cd", list[1])
+        list = s.split('^')
+        assertEquals(3, list.size)
+        assertEquals("cd", list[2])
+        list = s.split('.')
+        assertEquals(1, list.size)
+        assertEquals(s, list[0])
+    }
+
 }