Sync svelte docs (#1019)

sync svelte docs

Co-authored-by: Rich-Harris <[email protected]>

Author: github-actions[bot]

apps/svelte.dev/content/docs/svelte/02-runes/07-$inspect.md

@@ -43,3 +43,20 @@ A convenient way to find the origin of some change is to pass `console.trace` to
 // @errors: 2304
 $inspect(stuff).with(console.trace);
 ```
+
+## $inspect.trace(...)
+
+This rune, added in 5.14, causes the surrounding function to be _traced_ in development. Any time the function re-runs as part of an [effect]($effect) or a [derived]($derived), information will be printed to the console about which pieces of reactive state caused the effect to fire.
+
+```svelte
+<script>
+	import { doSomeWork } from './elsewhere';
+
+	$effect(() => {
+		+++$inspect.trace();+++
+		doSomeWork();
+	});
+</script>
+```
+
+`$inspect.trace` takes an optional first argument which will be used as the label.

apps/svelte.dev/content/docs/svelte/98-reference/.generated/compile-errors.md

@@ -442,6 +442,18 @@ Expected whitespace
 Imports of `svelte/internal/*` are forbidden. It contains private runtime code which is subject to change without notice. If you're importing from `svelte/internal/*` to work around a limitation of Svelte, please open an issue at https://github.com/sveltejs/svelte and explain your use case
 ```
 
+### inspect_trace_generator
+
+```
+`$inspect.trace(...)` cannot be used inside a generator function
+```
+
+### inspect_trace_invalid_placement
+
+```
+`$inspect.trace(...)` must be the first statement of a function body
+```
+
 ### invalid_arguments_usage
 
 ```

apps/svelte.dev/content/docs/svelte/98-reference/30-compiler-errors.md

@@ -447,6 +447,18 @@ Expected whitespace
 Imports of `svelte/internal/*` are forbidden. It contains private runtime code which is subject to change without notice. If you're importing from `svelte/internal/*` to work around a limitation of Svelte, please open an issue at https://github.com/sveltejs/svelte and explain your use case
 ```
 
+### inspect_trace_generator
+
+```
+`$inspect.trace(...)` cannot be used inside a generator function
+```
+
+### inspect_trace_invalid_placement
+
+```
+`$inspect.trace(...)` must be the first statement of a function body
+```
+
 ### invalid_arguments_usage
 
 ```