feat(transformer): support generate proper binding name from ChainExp…

…ression (#7326)

crates/oxc_traverse/src/ast_operations/gather_node_parts.rs

@@ -186,6 +186,7 @@ impl<'a> GatherNodeParts<'a> for Expression<'a> {
             Self::ParenthesizedExpression(expr) => expr.gather(f),
             Self::UnaryExpression(expr) => expr.gather(f),
             Self::UpdateExpression(expr) => expr.gather(f),
+            Self::ChainExpression(expr) => expr.gather(f),
             Self::MetaProperty(expr) => expr.gather(f),
             Self::JSXElement(expr) => expr.gather(f),
             Self::JSXFragment(expr) => expr.gather(f),
@@ -198,6 +199,21 @@ impl<'a> GatherNodeParts<'a> for Expression<'a> {
     }
 }
 
+impl<'a> GatherNodeParts<'a> for ChainExpression<'a> {
+    fn gather<F: FnMut(&str)>(&self, f: &mut F) {
+        self.expression.gather(f);
+    }
+}
+
+impl<'a> GatherNodeParts<'a> for ChainElement<'a> {
+    fn gather<F: FnMut(&str)>(&self, f: &mut F) {
+        match self {
+            ChainElement::CallExpression(expr) => expr.gather(f),
+            expr => expr.to_member_expression().gather(f),
+        }
+    }
+}
+
 impl<'a> GatherNodeParts<'a> for MemberExpression<'a> {
     fn gather<F: FnMut(&str)>(&self, f: &mut F) {
         match self {

tasks/coverage/snapshots/semantic_typescript.snap

@@ -47454,11 +47454,11 @@ rebuilt        : ScopeId(0): []
 tasks/coverage/typescript/tests/cases/conformance/expressions/nullishCoalescingOperator/nullishCoalescingOperator12.ts
 semantic error: Bindings mismatch:
 after transform: ScopeId(0): ["obj"]
-rebuilt        : ScopeId(0): ["_ref", "obj"]
+rebuilt        : ScopeId(0): ["_obj$arr", "obj"]
 Bindings mismatch:
-after transform: ScopeId(1): ["_ref", "i"]
+after transform: ScopeId(1): ["_obj$arr", "i"]
 rebuilt        : ScopeId(1): ["i"]
-Symbol scope ID mismatch for "_ref":
+Symbol scope ID mismatch for "_obj$arr":
 after transform: SymbolId(2): ScopeId(1)
 rebuilt        : SymbolId(0): ScopeId(0)