Fix Missing GUID in CloudController Application Type (cloudfoundry#3549)

Signed-off-by: Dilip Tadepalli <tadepalli.dilip@gmail.com>

Author: dilipmighty245

api/cloudcontroller/ccv3/requester_test.go

@@ -358,6 +358,7 @@ var _ = Describe("shared request helpers", func() {
 
 					expectedBody := map[string]interface{}{
 						"name": "some-app-name",
+						"guid": "some-app-guid",
 						"lifecycle": map[string]interface{}{
 							"type": "buildpack",
 							"data": map[string]interface{}{
@@ -489,6 +490,7 @@ var _ = Describe("shared request helpers", func() {
 
 				expectedBody := map[string]interface{}{
 					"name": "some-app-name",
+					"guid": "some-app-guid",
 					"lifecycle": map[string]interface{}{
 						"type": "buildpack",
 						"data": map[string]interface{}{

resources/application_resource.go

@@ -40,6 +40,7 @@ type ApplicationNameOnly struct {
 // MarshalJSON converts an Application into a Cloud Controller Application.
 func (a Application) MarshalJSON() ([]byte, error) {
 	ccApp := ccApplication{
+		GUID:     a.GUID,
 		Name:     a.Name,
 		Metadata: a.Metadata,
 	}