Fix RepeatLastCharSearch and RepeatLastCharSearchBackwards to not flip their functionalities (#1253)

Author: mikebattista

PSReadLine/ReadLine.vi.cs

@@ -76,7 +76,6 @@ public static bool SearchDelete(char keyChar, object arg, bool backoff, Action<C
 
             public static void SearchBackward(char keyChar, object arg, bool backoff)
             {
-                Set(keyChar, isBackward: true, isBackoff: backoff);
                 int qty = arg as int? ?? 1;
 
                 for (int i = _singleton._current - 1; i >= 0; i--)

test/MovementTest.VI.cs

@@ -508,6 +508,35 @@ public void ViCharacterSearch()
                 "dd"
                 ));
 
+            Test("", Keys(
+                "0101010",
+                CheckThat(() => AssertCursorLeftIs(7)),
+                _.Escape,
+                _.Uphat,
+                "f1",
+                CheckThat(() => AssertCursorLeftIs(1)),
+                ";",
+                CheckThat(() => AssertCursorLeftIs(3)),
+                ";",
+                CheckThat(() => AssertCursorLeftIs(5)),
+                ",",
+                CheckThat(() => AssertCursorLeftIs(3)),
+                ",",
+                CheckThat(() => AssertCursorLeftIs(1)),
+                _.Dollar,
+                "F1",
+                CheckThat(() => AssertCursorLeftIs(5)),
+                ";",
+                CheckThat(() => AssertCursorLeftIs(3)),
+                ";",
+                CheckThat(() => AssertCursorLeftIs(1)),
+                ",",
+                CheckThat(() => AssertCursorLeftIs(3)),
+                ",",
+                CheckThat(() => AssertCursorLeftIs(5)),
+                "dd"
+            ));
+
             TestMustDing("01234", Keys(
                 "01234",
                 CheckThat(() => AssertCursorLeftIs(5)),