fix(linter): skip no-multi-str on jsx attributes (#4666)

crates/oxc_linter/src/rules/eslint/no_multi_str.rs

@@ -1,6 +1,7 @@
 use oxc_ast::AstKind;
 use oxc_diagnostics::OxcDiagnostic;
 use oxc_macros::declare_oxc_lint;
+use oxc_semantic::AstNodeId;
 use oxc_span::Span;
 
 use crate::{context::LintContext, rule::Rule, AstNode};
@@ -38,7 +39,7 @@ impl Rule for NoMultiStr {
             // https://github.com/eslint/eslint/blob/9e6d6405c3ee774c2e716a3453ede9696ced1be7/lib/shared/ast-utils.js#L12
             let position =
                 source.find(|ch| matches!(ch, '\r' | '\n' | '\u{2028}' | '\u{2029}')).unwrap_or(0);
-            if position != 0 {
+            if position != 0 && !is_within_jsx_attribute_item(node.id(), ctx) {
                 // We found the "newline" character but want to highlight the '\', so go back one
                 // character.
                 let multi_span_start =
@@ -52,6 +53,13 @@ impl Rule for NoMultiStr {
     }
 }
 
+fn is_within_jsx_attribute_item(id: AstNodeId, ctx: &LintContext) -> bool {
+    if matches!(ctx.nodes().parent_kind(id), Some(AstKind::JSXAttributeItem(_))) {
+        return true;
+    }
+    false
+}
+
 #[test]
 fn test() {
     use crate::tester::Tester;
@@ -61,6 +69,8 @@ fn test() {
         "var a = <div>
 			<h1>Wat</h1>
 			</div>;", // { "ecmaVersion": 6, "parserOptions": { "ecmaFeatures": { "jsx": true } } }
+        r#"<div class="line1
+        line2"></div>"#, // jsx
     ];
 
     let fail = vec![