next.js

2df7cf60 - feat(turbopack): construct output path with distDir next.js config (#55613)

feat(turbopack): construct output path with distDir next.js config (#55613) ### What? This PR enables basic support for next.config.js's `distDir` config. PR have two main pieces, one for honoring distDir and construct output path other than `.next`, and secondly assign `process.env.__NEXT_DIST_DIR` to client / edge. The latter increased size of PR bit as had to downstream to the compile_define calls. Corresponding tests are enabled to verify its behavior. Closes WEB-1610