fix(linter): Address review feedback for no-multi-comp rule

- Use reference system instead of root scope lookup for aliased imports
- Handle sequence expressions returning null (e.g., `const Foo = (0, () => null)`)
- Document limitation about destructured aliased imports

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: connorshea

crates/oxc_linter/src/rules/react/no_multi_comp.rs

@@ -271,10 +271,10 @@ fn detect_variable_component(
         return Some(DetectedComponent { name, span: decl.span, is_stateless: true });
     }
 
-    // Sequence expression: const Foo = (0, () => <div/>)
+    // Sequence expression: const Foo = (0, () => <div/>) or const Foo = (0, () => null)
     if let Expression::SequenceExpression(seq) = init
         && let Some(last) = seq.expressions.last()
-        && expression_contains_jsx(last)
+        && (expression_contains_jsx(last) || is_function_returning_null(last))
     {
         return Some(DetectedComponent { name, span: decl.span, is_stateless: true });
     }
@@ -311,12 +311,14 @@ fn get_hoc_callee_name(call: &CallExpression, ctx: &LintContext) -> Option<Strin
     }
 
     // Check for aliased imports: const myMemo = React.memo
+    // Note: This does not handle destructured aliased imports like `const {memo: myMemo} = React`
     let Expression::Identifier(ident) = &call.callee else {
         return None;
     };
 
     let scoping = ctx.scoping();
-    let symbol_id = scoping.get_binding(scoping.root_scope_id(), &ident.name)?;
+    let reference = scoping.get_reference(ident.reference_id());
+    let symbol_id = reference.symbol_id()?;
     let decl_node = ctx.nodes().get_node(scoping.symbol_declaration(symbol_id));
     let AstKind::VariableDeclarator(var_decl) = decl_node.kind() else {
         return None;