Display CoffeeScript line numbers in stack traces

Use coffeestack to convert stack traces to have CoffeeScript
line and column numbers in the output instead of JavaScript line
and column numbers.

package.json

@@ -35,6 +35,7 @@
     "semver": "1.1.4",
     "guid": "0.0.10",
     "tantamount": "0.3.0",
+    "coffeestack": "0.4.0",
     "c-tmbundle": "1.0.0",
     "coffee-script-tmbundle": "2.0.0",
     "css-tmbundle": "1.0.0",

spec/atom-reporter.coffee

@@ -1,6 +1,19 @@
 $ = require 'jquery'
 {View, $$} = require 'space-pen'
 _ = require 'underscore'
+{convertStackTrace} = require 'coffeestack'
+
+sourceMaps = {}
+formatStackTrace = (stackTrace) ->
+  return stackTrace unless stackTrace
+
+  jasminePath = require.resolve('jasmine')
+  jasminePattern = new RegExp("\\(#{_.escapeRegExp(jasminePath)}:\\d+:\\d+\\)\\s*$")
+  convertedLines = []
+  for line in stackTrace.split('\n')
+    convertedLines.push(line) unless jasminePattern.test(line)
+
+  convertStackTrace(convertedLines.join('\n'), sourceMaps)
 
 module.exports =
 class AtomReporter extends View
@@ -42,6 +55,7 @@ class AtomReporter extends View
 
   reportSpecResults: (spec) ->
     @completeSpecCount++
+    spec.endedAt = new Date().getTime()
     @specComplete(spec)
     @updateStatusView(spec)
 
@@ -99,7 +113,7 @@ class AtomReporter extends View
     rootSuite = rootSuite.parentSuite while rootSuite.parentSuite
     @message.text rootSuite.description
 
-    time = "#{Math.round((new Date().getTime() - @startedAt.getTime()) / 10)}"
+    time = "#{Math.round((spec.endedAt - @startedAt.getTime()) / 10)}"
     time = "0#{time}" if time.length < 3
     @time.text "#{time[0...-2]}.#{time[-2..]}s"
 
@@ -166,7 +180,7 @@ class SpecResultView extends View
     @description.html @spec.description
 
     for result in @spec.results().getItems() when not result.passed()
-      stackTrace = @formatStackTrace(result.trace.stack)
+      stackTrace = formatStackTrace(result.trace.stack)
       @specFailures.append $$ ->
         @div result.message, class: 'resultMessage fail'
         @div stackTrace, class: 'stackTrace' if stackTrace
@@ -174,18 +188,6 @@ class SpecResultView extends View
   attach: ->
     @parentSuiteView().append this
 
-  formatStackTrace: (stackTrace) ->
-    return stackTrace unless stackTrace
-
-    jasminePath = require.resolve('jasmine')
-    jasminePattern = new RegExp("\\(#{_.escapeRegExp(jasminePath)}:\\d+:\\d+\\)\\s*$")
-    convertedLines = []
-    for line in stackTrace.split('\n')
-      unless jasminePattern.test(line)
-        convertedLines.push(line)
-
-    convertedLines.join('\n')
-
   parentSuiteView: ->
     if not suiteView = $(".suite-view-#{@spec.suite.id}").view()
       suiteView = new SuiteResultView(@spec.suite)