[test cases] Add failing / bug tests for destructuring assignment

compiler/forget/src/__tests__/fixtures/compiler/_bug.destructure-assignment-to-global.expect.md

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+
+## Input
+
+```javascript
+function useFoo(props) {
+  [x] = props;
+  return { x };
+}
+
+```
+
+## Code
+
+```javascript
+import { unstable_useMemoCache as useMemoCache } from "react";
+function useFoo(props) {
+  const $ = useMemoCache(1);
+  let t0;
+  if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
+    t0 = { x };
+    $[0] = t0;
+  } else {
+    t0 = $[0];
+  }
+  return t0;
+}
+
+```
+      

compiler/forget/src/__tests__/fixtures/compiler/_bug.destructure-assignment-to-global.js

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+function useFoo(props) {
+  [x] = props;
+  return { x };
+}

compiler/forget/src/__tests__/fixtures/compiler/error.todo.destructure-assignment-to-context-var.expect.md

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+
+## Input
+
+```javascript
+function useFoo(props) {
+  let x;
+  [x] = props;
+  const foo = () => {
+    x = getX(props);
+  };
+  foo();
+  return { x };
+}
+
+```
+
+
+## Error
+
+```
+[InferReferenceEffects] Context variables are always mutable.
+```
+          
+      

compiler/forget/src/__tests__/fixtures/compiler/error.todo.destructure-assignment-to-context-var.js

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+function useFoo(props) {
+  let x;
+  [x] = props;
+  const foo = () => {
+    x = getX(props);
+  };
+  foo();
+  return { x };
+}