2017-09-25: expand test for double-reduction of indentation levels

expand test for double-reduction of indentation levels

diff --git a/tests/partial-indent.scm b/tests/partial-indent.scm
--- a/tests/partial-indent.scm
+++ b/tests/partial-indent.scm
@@ -1,7 +1,14 @@
-(write 
+(write
  (list
     (+ 1 2)
    (+ 2 3)))
 (newline)
 
+(write
+ (list
+    (+ 1 2
+      (+ 3 4))
+   (+ 2 3)))
+(newline)
 
+
diff --git a/tests/partial-indent.w b/tests/partial-indent.w
--- a/tests/partial-indent.w
+++ b/tests/partial-indent.w
@@ -1,5 +1,12 @@
-write 
+write
  list
     + 1 2
    + 2 3
 newline
+
+write
+ list
+    + 1 2
+      + 3 4
+   + 2 3
+newline