Fix more tests.

tests/vibe.web.rest.1125/source/app.d

@@ -21,6 +21,7 @@ shared static this()
 }
 
 interface ILlama {
+@safe:
     @bodyParam("llama", "llama")
     string updateLlama(string llama = null);
 }

tests/vibe.web.rest.1140/source/app.d

@@ -3,11 +3,13 @@ import vibe.d;
 
 interface IOrientDBRoot
 {
+@safe:
 	@property IOrientDBQuery query();
 }
 
 interface IOrientDBQuery
 {
+@safe:
 	@method(HTTPMethod.GET)
 	@path(":db_name/sql/:query/:result_set_size")
 	Json sql(string _db_name, string _query, int _result_set_size);

tests/vibe.web.rest.1230/source/app.d

@@ -2,6 +2,7 @@ import std.datetime;
 import vibe.d;
 
 interface ITestAPI {
+@safe:
     string postDefault(int value, bool check = true);
 }
 

tests/vibe.web.rest.1922/source/app.d

@@ -44,6 +44,7 @@ struct AuthInfo {
 
 @requiresAuth
 interface IItemAPI {
+@safe:
 	struct CollectionIndices {
 		string item;
 	}
@@ -66,6 +67,7 @@ class ItemAPI : IItemAPI {
 
 @requiresAuth
 interface IAuthAPI {
+@safe:
 	@noAuth int getNonAuthNumber(int num);
 	@anyAuth int getAuthNumber(AuthInfo info, int num);
 	@anyAuth Collection!IItemAPI items();

tests/vibe.web.rest.2506/source/app.d

@@ -11,6 +11,7 @@ struct TestStruct {int i;}
 
 interface IService
 {
+@safe:
 	@safe TestStruct getTest(int sleepsecs);
 	@safe TestStruct getTest2(int sleepsecs);
 }

tests/vibe.web.rest.auth/source/app.d

@@ -72,6 +72,7 @@ struct Auth {
 
 @requiresAuth
 interface IService {
+@safe:
     @noAuth int getPublic();
     @anyAuth int getAny();
     @anyAuth int getAnyA(Auth auth);