fix(ast): change TSMappedType.type_annotation from TSTypeAnnotation to TSType (#2571)

Is ESTree, in that special case, there is no TSTypeAnnotation wrapper:

(See `type X` in each)

- [oxc
playground](https://oxc-project.github.io/oxc/playground/?code=3YCAAIAWgICAgICAgICyHorESipoToAAwTlix58geR2%2Beeu9rZHQZOqK%2B%2BX85ZQ9ldchOoVw2oAm2qi9okF3bJ9o4l78ENP3f%2Bc%2B8cIK6Itp%2B3SIInU72Vk0%2FSqawy1VNV5zTgBr7gOpGtUZsvkc12Yp8MC2shel9fbpgDySpYsWdgDhf3jVlIA%3D)
- [astexplorer TSESLint
parser](9fc767f3a5)
- [astexplorer Babel
parser](9a4b02fae1)

---------

Co-authored-by: Boshen <boshenc@gmail.com>

crates/oxc_ast/src/ast/ts.rs

@@ -836,7 +836,7 @@ pub struct TSMappedType<'a> {
     pub span: Span,
     pub type_parameter: Box<'a, TSTypeParameter<'a>>,
     pub name_type: Option<TSType<'a>>,
-    pub type_annotation: Option<Box<'a, TSTypeAnnotation<'a>>>,
+    pub type_annotation: Option<TSType<'a>>,
     pub optional: TSMappedTypeModifierOperator,
     pub readonly: TSMappedTypeModifierOperator,
 }

crates/oxc_ast/src/ast_builder.rs

@@ -1667,7 +1667,7 @@ impl<'a> AstBuilder<'a> {
         span: Span,
         type_parameter: Box<'a, TSTypeParameter<'a>>,
         name_type: Option<TSType<'a>>,
-        type_annotation: Option<Box<'a, TSTypeAnnotation<'a>>>,
+        type_annotation: Option<TSType<'a>>,
         optional: TSMappedTypeModifierOperator,
         readonly: TSMappedTypeModifierOperator,
     ) -> TSType<'a> {

crates/oxc_ast/src/visit.rs

@@ -1668,7 +1668,7 @@ pub trait Visit<'a>: Sized {
             self.visit_ts_type(name);
         }
         if let Some(type_annotation) = &ty.type_annotation {
-            self.visit_ts_type_annotation(type_annotation);
+            self.visit_ts_type(type_annotation);
         }
     }
 

crates/oxc_ast/src/visit_mut.rs

@@ -1667,7 +1667,7 @@ pub trait VisitMut<'a>: Sized {
             self.visit_ts_type(name);
         }
         if let Some(type_annotation) = &mut ty.type_annotation {
-            self.visit_ts_type_annotation(type_annotation);
+            self.visit_ts_type(type_annotation);
         }
     }
 

crates/oxc_parser/src/ts/types.rs

@@ -662,7 +662,7 @@ impl<'a> ParserImpl<'a> {
             _ => TSMappedTypeModifierOperator::None,
         };
 
-        let type_annotation = self.parse_ts_type_annotation()?;
+        let type_annotation = self.eat(Kind::Colon).then(|| self.parse_ts_type()).transpose()?;
         self.bump(Kind::Semicolon);
         self.expect(Kind::RCurly)?;