Move generation to babel 7 (#762)

* update babel to version 7

This enables us to generate better comments

* use new addComment function of babel to generate nicer comments

* improve tightly coupled test

detox/src/ios/earlgreyapi/EarlGreyImpl.js

@@ -15,14 +15,14 @@ function sanitize_uiDeviceOrientation(value) {
 } 
 class EarlGreyImpl {
   /*Provides the file name and line number of the code that is calling into EarlGrey.
-In case of a failure, the information is used to tell XCTest the exact line which caused
-the failure so it can be highlighted in the IDE.
-
-@param fileName   The name of the file where the failing code exists.
-@param lineNumber The line number of the failing code.
-
-@return An EarlGreyImpl instance, with details of the code invoking EarlGrey.
-*/static invokedFromFileLineNumber(fileName, lineNumber) {
+  In case of a failure, the information is used to tell XCTest the exact line which caused
+  the failure so it can be highlighted in the IDE.
+  
+  @param fileName   The name of the file where the failing code exists.
+  @param lineNumber The line number of the failing code.
+  
+  @return An EarlGreyImpl instance, with details of the code invoking EarlGrey.*/
+  static invokedFromFileLineNumber(fileName, lineNumber) {
     if (typeof fileName !== "string") throw new Error("fileName should be a string, but got " + (fileName + (" (" + (typeof fileName + ")"))));
     if (typeof lineNumber !== "number") throw new Error("lineNumber should be a number, but got " + (lineNumber + (" (" + (typeof lineNumber + ")"))));
     return {
@@ -42,16 +42,16 @@ the failure so it can be highlighted in the IDE.
   }
 
   /*Rotate the device to a given @c deviceOrientation. All device orientations except for
-@c UIDeviceOrientationUnknown are supported. If a non-nil @c errorOrNil is provided, it will
-be populated with the failure reason if the orientation change fails, otherwise a test failure
-will be registered.
-
-@param      deviceOrientation The desired orientation of the device.
-@param[out] errorOrNil        Error that will be populated on failure. If @c nil, a test
-failure will be reported if the rotation attempt fails.
-
-@return @c YES if the rotation was successful, @c NO otherwise.
-*/static rotateDeviceToOrientationErrorOrNil(element, deviceOrientation) {
+  @c UIDeviceOrientationUnknown are supported. If a non-nil @c errorOrNil is provided, it will
+  be populated with the failure reason if the orientation change fails, otherwise a test failure
+  will be registered.
+  
+  @param      deviceOrientation The desired orientation of the device.
+  @param[out] errorOrNil        Error that will be populated on failure. If @c nil, a test
+  failure will be reported if the rotation attempt fails.
+  
+  @return @c YES if the rotation was successful, @c NO otherwise.*/
+  static rotateDeviceToOrientationErrorOrNil(element, deviceOrientation) {
     if (!["landscape", "portrait"].some(option => option === deviceOrientation)) throw new Error("deviceOrientation should be one of [landscape, portrait], but got " + deviceOrientation);
     return {
       target: element,
@@ -64,16 +64,16 @@ failure will be reported if the rotation attempt fails.
   }
 
   /*Shakes the device. If a non-nil @c errorOrNil is provided, it will
-be populated with the failure reason if the orientation change fails, otherwise a test failure
-will be registered.
-
-@param[out] errorOrNil Error that will be populated on failure. If @c nil, the a test
-failure will be reported if the shake attempt fails.
-
-@throws GREYFrameworkException if the action fails and @c errorOrNil is @c nil.
-@return @c YES if the shake was successful, @c NO otherwise. If @c errorOrNil is @c nil and
-the operation fails, it will throw an exception.
-*/static shakeDeviceWithError(element) {
+  be populated with the failure reason if the orientation change fails, otherwise a test failure
+  will be registered.
+  
+  @param[out] errorOrNil Error that will be populated on failure. If @c nil, the a test
+  failure will be reported if the shake attempt fails.
+  
+  @throws GREYFrameworkException if the action fails and @c errorOrNil is @c nil.
+  @return @c YES if the shake was successful, @c NO otherwise. If @c errorOrNil is @c nil and
+  the operation fails, it will throw an exception.*/
+  static shakeDeviceWithError(element) {
     return {
       target: element,
       method: "shakeDeviceWithError:",
@@ -82,13 +82,13 @@ the operation fails, it will throw an exception.
   }
 
   /*Dismisses the keyboard by resigning the first responder, if any. Will populate the provided
-error if the first responder is not present or if the keyboard is not visible.
-
-@param[out] errorOrNil Error that will be populated on failure. If @c nil, a test
-failure will be reported if the dismissing fails.
-
-@return @c YES if the dismissing of the keyboard was successful, @c NO otherwise.
-*/static dismissKeyboardWithError(element) {
+  error if the first responder is not present or if the keyboard is not visible.
+  
+  @param[out] errorOrNil Error that will be populated on failure. If @c nil, a test
+  failure will be reported if the dismissing fails.
+  
+  @return @c YES if the dismissing of the keyboard was successful, @c NO otherwise.*/
+  static dismissKeyboardWithError(element) {
     return {
       target: element,
       method: "dismissKeyboardWithError:",