Honor ts-ignore directives on multiline JSX in dependencies

[Copilot]

tsgo reported JSX attribute errors from dependency source files that tsc suppressed. The diagnostics occurred below an @ts-ignore attached to the JSX opening element.

// @ts-ignore
<Component
    invalidProp=""
>
    <Child />
</Component>

Changes

• Extend directive matching for JSX diagnostics with semantic children to also inspect the line preceding the opening element.
• Preserve existing line-based behavior for other diagnostics.
• Add regression coverage for line and JSX-comment directives in a package loaded through node_modules.

• Fixes tsgo reports type errors in external-library (node_modules) source files that tsc suppresses #4719

[jakebailey]

@copilot What the heck is this code? I don't recognize it from Strada.

[Copilot]

You're right; it wasn't from Strada. I removed it in 00ced4f. The actual divergence was Corsa sorting the synthetic JSX children property after explicit attributes, while Strada's insertion-ordered spread checks children first and places this diagnostic on the opening tag. The replacement aligns that checker ordering and leaves directive filtering unchanged.