chore: restructure SchemaRecord test file layout to make it easier to navigate (emberjs#9763)

* chore: simplify test file layout

* chore: move polaris test files to new structure

Author: runspired

tests/warp-drive__schema-record/tests/legacy/create/basic-fields-test.ts tests/warp-drive__schema-record/tests/legacy/basic-fields-create-test.ts

@@ -15,8 +15,8 @@ import type { StableRecordIdentifier } from '@warp-drive/core-types';
 import { Type } from '@warp-drive/core-types/symbols';
 import type { SchemaRecord, Transformation } from '@warp-drive/schema-record';
 
-import { simplePayloadNormalize } from '../../-utils/normalize-payload';
-import { reactiveContext } from '../../-utils/reactive-context';
+import { simplePayloadNormalize } from '../-utils/normalize-payload';
+import { reactiveContext } from '../-utils/reactive-context';
 
 interface User {
   id: string | null;

tests/warp-drive__schema-record/tests/legacy/reactivity/basic-fields-test.ts tests/warp-drive__schema-record/tests/legacy/basic-fields-reactivity-test.ts

@@ -14,7 +14,7 @@ import type { Type } from '@warp-drive/core-types/symbols';
 
 import type Store from 'warp-drive__schema-record/services/store';
 
-import { reactiveContext } from '../../-utils/reactive-context';
+import { reactiveContext } from '../-utils/reactive-context';
 
 module('Legacy | Reactivity | relationships', function (hooks) {
   setupRenderingTest(hooks);