Respect babel sourceMaps option

index.js

@@ -190,10 +190,12 @@ module.exports = {
     let addonProvidedConfig = this._getAddonProvidedConfig(config);
     let shouldCompileModules = this._shouldCompileModules(config);
 
-    let providedAnnotation = config['ember-cli-babel'] && config['ember-cli-babel'].annotation;
+    let addonOptions = config['ember-cli-babel'] || {};
+    let babelOptions = config.babel || {};
 
     let options = {
-      annotation: providedAnnotation || `Babel: ${this._parentName()}`
+      annotation: addonOptions.annotation || `Babel: ${this._parentName()}`,
+      sourceMaps: addonOptions.sourceMaps || babelOptions.sourceMaps
     };
 
     let userPlugins = addonProvidedConfig.plugins;

node-tests/addon-test.js

@@ -532,6 +532,28 @@ describe('ember-cli-babel', function() {
       expect(result.annotation).to.equal('Hello World!');
     });
 
+    it('uses provided sourceMaps if specified using options.babel', function() {
+      let options = {
+        babel: {
+          sourceMaps: 'inline'
+        }
+      };
+
+      let result = this.addon.buildBabelOptions(options);
+      expect(result.sourceMaps).to.equal('inline');
+    });
+
+    it('uses provided sourceMaps if specified using options.ember-cli-babel', function() {
+      let options = {
+        'ember-cli-babel': {
+          sourceMaps: 'inline'
+        }
+      };
+
+      let result = this.addon.buildBabelOptions(options);
+      expect(result.sourceMaps).to.equal('inline');
+    });
+
     it('does not include all provided options', function() {
       let babelOptions = { blah: true };
       let options = {