[svn r126] String switch is now implemented.

A few other fixes.

test/switch3.d

@@ -0,0 +1,24 @@
+module switch3;
+
+void main()
+{
+    char[] str = "hello";
+    int i;
+    switch(str)
+    {
+    case "world":
+        i = 1;
+        assert(0);
+    case "hello":
+        i = 2;
+        break;
+    case "a","b","c":
+        i = 3;
+        assert(0);
+    default:
+        i = 4;
+        assert(0);
+    }
+    assert(i == 2);
+    printf("SUCCESS\n");
+}