Version 2 of new source mapping.

examples/error.dst

@@ -0,0 +1,18 @@
+# An example file that errors out. Run with ./dst examples/error.dst
+# to see stack trace for runtime errors.
+
+(defn bark [x]
+  (print "Woof!")
+  (print x)
+  (error x)
+  (print "Woof!"))
+
+(defn bork [x]
+  (bark (* 2 x))
+  (bark (* 3 x)))
+
+(defn pupper []
+  (bork 3)
+  1)
+
+(pupper)