fix(codegen): improve typescript codegen

Author: Boshen

.gitignore

@@ -27,6 +27,3 @@ tasks/coverage/babel/
 tasks/coverage/test262/
 tasks/coverage/typescript/
 tasks/prettier_conformance/prettier/
-
-# Ignore the failures directory, which is used to store the results of the codegen coverage tests
-tasks/coverage/failures/

crates/oxc_ast/src/precedence.rs

@@ -3,8 +3,8 @@ use oxc_syntax::precedence::{GetPrecedence, Precedence};
 use crate::ast::{
     match_member_expression, ArrowFunctionExpression, AssignmentExpression, AwaitExpression,
     BinaryExpression, CallExpression, ConditionalExpression, Expression, ImportExpression,
-    LogicalExpression, MemberExpression, NewExpression, SequenceExpression, UnaryExpression,
-    UpdateExpression, YieldExpression,
+    LogicalExpression, MemberExpression, NewExpression, SequenceExpression, TSTypeAssertion,
+    UnaryExpression, UpdateExpression, YieldExpression,
 };
 
 impl<'a> GetPrecedence for Expression<'a> {
@@ -119,3 +119,9 @@ impl<'a> GetPrecedence for MemberExpression<'a> {
         Precedence::Member
     }
 }
+
+impl<'a> GetPrecedence for TSTypeAssertion<'a> {
+    fn precedence(&self) -> Precedence {
+        Precedence::lowest()
+    }
+}