Syntax error doesn't tell Svelte how to indicate line number

[canadaduane]

🐛 Bug Report

When I have a syntax error in a svelte file, the error message does not indicate which line to look at.

For example, in the script section of a svelte file, I began a "$:" line, but didn't finish it (leave it dangling, with no statement following the "$:"). This is a syntax error. I received the following error message when compiling:

🚨  /Users/duane/Projects/relm/src/audiovideo/Conference.svelte: Unexpected token
    at error$1 (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:15595:20)
    at Parser$1.error (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:15671:10)
    at Parser$1.acorn_error (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:15665:15)
    at Object.read_script [as read] (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:7377:17)
    at tag (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:14737:34)
    at new Parser$1 (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:15630:22)
    at parse$3 (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:15761:21)
    at compile (/Users/duane/Projects/relm/node_modules/svelte/compiler.js:26931:18)
    at SvelteAsset.generate (/Users/duane/Projects/relm/node_modules/parcel-plugin-svelte/lib/svelte-asset.js:43:25)

See sveltejs/svelte#5411

💻 Code Sample

Leave a dangling $: somewhere inside the <script> section of a .svelte file to generate a syntax error.

🌍 Your Environment

Svelte: 3.23.2