fix(formatter/sort_imports): Handle internal prefixes correctly (#16128)

| |Before|After|
|-|-|-|
| `from "@scoped/foo"`| internal (🐛) | external (✨) |
| `from "@/foo"` | internal | internal |

Author: leaysgur

crates/oxc_formatter/src/ir_transform/sort_imports/compute_metadata.rs

@@ -365,7 +365,7 @@ fn to_path_kind(source: &str) -> ImportPathKind {
     }
 
     // TODO: This can be changed via `options.internalPattern`
-    if source.starts_with('~') || source.starts_with('@') {
+    if source.starts_with("~/") || source.starts_with("@/") {
         return ImportPathKind::Internal;
     }
 

crates/oxc_formatter/tests/ir_transform/sort_imports.rs

@@ -66,6 +66,22 @@ import("a");
 import b from "b";
 import c from "c";
 import("a");
+"#,
+    );
+    assert_format(
+        r#"
+import internal from "~/internal";
+import internal2 from "@/internal2";
+import external from "external";
+import external2 from "@external2";
+"#,
+        r#"{ "experimentalSortImports": {} }"#,
+        r#"
+import external2 from "@external2";
+import external from "external";
+
+import internal2 from "@/internal2";
+import internal from "~/internal";
 "#,
     );
 }