2014-01-21: added explicit test for colon-syntax

added explicit test for colon-syntax

diff --git a/tests/syntax-colon.scm b/tests/syntax-colon.scm
new file mode 100644
--- /dev/null
+++ b/tests/syntax-colon.scm
@@ -0,0 +1,24 @@
+(let
+  (
+    (a 1)
+    (b 2))
+  (let
+    (
+      (
+        c 3))
+    (format #t "a: ~A, b: ~A, c: ~A"
+                 a      b      c)))
+
+((a))
+
+(define (hello)
+  (display "hello"))
+
+(let
+  ((a 1)
+    (b 2))
+  (format #t "a: ~A, b: ~A"
+               a      b))
+
+
+
diff --git a/tests/syntax-colon.w b/tests/syntax-colon.w
new file mode 100644
--- /dev/null
+++ b/tests/syntax-colon.w
@@ -0,0 +1,22 @@
+let
+  :
+    a 1
+    b 2
+  let
+    :
+      :
+        . c 3
+    format #t "a: ~A, b: ~A, c: ~A"
+              .    a      b      c
+
+: a
+
+define : hello
+  display "hello"
+
+let
+  : a 1
+    b 2
+  format #t "a: ~A, b: ~A"
+            .    a      b
+