Add fallback for tsconfig api

handles ts-jest old and new api

Author: seriouslag

lib/utils.js

@@ -66,8 +66,9 @@ const getBabelOptions = function loadBabelOptions(filename, options = {}) {
 const getTsJestConfig = function getTsJestConfig(config) {
   const createTransformer = require('ts-jest').createTransformer
   const tr = createTransformer()
-  const { parsedTsConfig } = tr.configsFor(config)
-  return { compilerOptions: parsedTsConfig.options }
+  const configSet = tr.configsFor(config)
+  var tsConfig = configSet.typescript || configSet.parsedTsConfig
+  return { compilerOptions: tsConfig.options }
 }
 
 function isValidTransformer(transformer) {