Fix DevTools links for Node module stack frames

[apples-kksk]

Summary:

• Convert raw POSIX and Windows absolute paths to file:// URLs when DevTools openInNewTab() cannot parse them as URLs.
• Leave Node stack frame filenames unchanged.
• Add a browser test for clicking a console link from a Node CommonJS module stack frame.

Fixes #4269

Test:

• git diff --check
• git apply --check -p0 patch/patches/devtools.patch against DevTools frontend revision 6efd6eb1d85fd67fdcc2385c54fa56c524bec3f7
• checked POSIX and Windows absolute path conversion with Node.js

I could not run the full NW.js browser test locally because it requires a Chromium/NW.js build output.