[#PPS-3931] regs gdpr nilability, instl test

Author: curly-brace-butler

bidrequest_test.go

@@ -22,6 +22,7 @@ func TestBidRequest(t *testing.T) {
 				ID:     "1",
 				Secure: 1,
 				Banner: &Banner{W: 300, H: 250, Pos: AdPosAboveFold, BAttr: []int{CreativeAttributeUserInitiated}},
+				Instl:  0,
 			},
 		},
 		Site: &Site{

openrtb.go

@@ -774,7 +774,7 @@ type UID struct {
 // regulations for the United States Children's Online Privacy Protection Act ("COPPA").
 type Regulations struct {
 	Coppa     int          `json:"coppa,omitempty"`      // Flag indicating if this request is subject to the COPPA regulations established by the USA FTC, where 0 = no, 1 = yes.
-	GDPR      int          `json:"gdpr"`                 // Flag that indicates whether or not the request is subject to GDPR regulations 0 = No, 1 = Yes, omission indicates Unknown.
+	GDPR      *int         `json:"gdpr,omitempty"`       // Flag that indicates whether the request is subject to GDPR regulations 0 = No, 1 = Yes, omission indicates Unknown.
 	USPrivacy string       `json:"us_privacy,omitempty"` // Communicates signals regarding consumer privacy under US privacy regulation.
 	Ext       RegExtension `json:"ext,omitempty"`
 }

testdata/breq.banner.json

@@ -6,6 +6,7 @@
     {
       "id": "1",
       "secure": 1,
+      "instl": 0,
       "banner": {
         "w": 300,
         "h": 250,