Standardize the error messages generated by constraint failures to a format
of "$TYPE constraint failed: $DETAIL".  This involves many changes to the
expected output of test cases.

FossilOrigin-Name: 54b221929744b1bcdbcc2030fef2e510618afd41
diff --git a/src/expr.c b/src/expr.c
index 4a321db..045ef15 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -2972,7 +2972,7 @@
             v, OP_Halt, SQLITE_OK, OE_Ignore, 0, pExpr->u.zToken,0);
       }else{
         sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_TRIGGER,
-                              pExpr->affinity, pExpr->u.zToken, 0);
+                              pExpr->affinity, pExpr->u.zToken, 0, 0);
       }
 
       break;