Fix some internal function names

test/testcase/invalid-type-boolean-inverse.js

@@ -1,6 +1,6 @@
 'use strict';
 
-module.exports = function attemptNotNullConstraintViolation(knex) {
+module.exports = function attemptInvalidTypeBooleanInverse(knex) {
     return knex("invalid_type").insert([{
         name: "Joe",
         age: 29,

test/testcase/invalid-type-boolean.js

@@ -1,6 +1,6 @@
 'use strict';
 
-module.exports = function attemptNotNullConstraintViolation(knex) {
+module.exports = function attemptInvalidTypeBoolean(knex) {
     return knex("invalid_type").insert([{
         name: "Joe",
         age: 29,

test/testcase/invalid-type-integer.js

@@ -1,6 +1,6 @@
 'use strict';
 
-module.exports = function attemptNotNullConstraintViolation(knex) {
+module.exports = function attemptInvalidTypeInteger(knex) {
     return knex("invalid_type").insert([{
         name: "Joe",
         age: 29,

test/testcase/undefined-column.js

@@ -1,6 +1,6 @@
 'use strict';
 
-module.exports = function attemptInvalidColumn(knex) {
+module.exports = function attemptUndefinedColumn(knex) {
     return knex("invalid_type").insert([{
         name: "Joe",
         age: 29,