fix(transformer): add this param to jsxDEV in automatic dev mode for class fields

[Copilot]

When JSX appears in class fields with setPublicClassFields: true, the class properties transform moves the JSX into a constructor. The this parameter was being omitted from jsxDEV calls in these constructors when a superclass exists.

Changes

• Removed can_add_self_attribute check for automatic dev mode - In automatic mode, this is passed as a function argument to jsxDEV(), not accessed as a property. Safe even before super().
• Kept check for classic mode - Classic mode adds __self: this to props object, which requires the check to avoid "this before super" errors.
• Added test coverage - Classes with and without superclass.

Example

Input:

export class Foo extends Object { foo = <div/> }

Before (incorrect):

this.foo = jsxDEV("div", {}, void 0, false, {
  fileName: _jsxFileName,
  lineNumber: 1,
  columnNumber: 42
});

After (correct):

this.foo = jsxDEV("div", {}, void 0, false, {
  fileName: _jsxFileName,
  lineNumber: 1,
  columnNumber: 42
}, this);

Matches esbuild, SWC, TypeScript, and Babel behavior.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>transformer: JSX in class field is missing this param for dev automatic transform when assumptions.setPublicClassFields: true</issue_title>
<issue_description>```jsx
export class Foo1 extends Object { foo =

}

is transformed to
```js
var _jsxFileName = "foo.tsx";
import { jsxDEV as _jsxDEV } from "react/jsx-dev-runtime";
export class Foo1 extends Object {
        constructor(..._args) {
                super(..._args);
                this.foo = /* @__PURE__ */ _jsxDEV("div", {}, void 0, false, {
                        fileName: _jsxFileName,
                        lineNumber: 2,
                        columnNumber: 42
                });
        }
        foo;
}

but this should be

var _jsxFileName = "foo.tsx";
import { jsxDEV as _jsxDEV } from "react/jsx-dev-runtime";
export class Foo1 extends Object {
        constructor(..._args) {
                super(..._args);
                this.foo = /* @__PURE__ */ _jsxDEV("div", {}, void 0, false, {
                        fileName: _jsxFileName,
                        lineNumber: 2,
                        columnNumber: 42
                }, this);
        }
        foo;
}

(stackblitz).

esbuild (esbuild try), SWC (playground), TypeScript (playground) all generates this.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes transformer: JSX in class field is missing this param for dev automatic transform when assumptions.setPublicClassFields: true #16654

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