Craft manual deprecation to get around stack depth limit

This allows the deprecation to be properly associated with the
package it originates from.

src/babel.coffee

@@ -140,19 +140,25 @@ loadFile = (module, filePath) ->
   if sourceCode.startsWith('"use babel"') or sourceCode.startsWith("'use babel'")
     # Continue.
   else if sourceCode.startsWith('"use 6to5"') or sourceCode.startsWith("'use 6to5'")
-    packageName
-    directory = filePath
-    until packageName
-      directory = path.dirname(directory)
-      manifest = path.join(directory, 'package.json')
-      if fs.existsSync(manifest)
-        json = JSON.parse(fs.readFileSync(manifest))
-        packageName = json.name
-      else if isRoot(directory)
-        break
-
+    # Create a manual deprecation since the stack is too deep to use Grim
+    # which limits the depth to 3
     Grim ?= require 'grim'
-    Grim.deprecate("Use the 'use babel' pragma instead of 'use 6to5' in #{filePath}", {packageName})
+    stack = [
+      {
+        fileName: __filename
+        functionName: 'loadFile'
+        location: "#{__filename}:161:5"
+      }
+      {
+        fileName: filePath
+        functionName: '<unknown>'
+        location: "#{filePath}:1:1"
+      }
+    ]
+    deprecation =
+      message: "Use the 'use babel' pragma instead of 'use 6to5'"
+      stacks: [stack]
+    Grim.addSerializedDeprecation(deprecation)
   else
     return module._compile(sourceCode, filePath)