[wildcards] type definition tests

See: #55681

Change-Id: Ib264ddfa2937e6c7fe1a0189a79255b137426bba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/381944
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Phil Quitslund <pquitslund@google.com>

pkg/analysis_server/test/lsp/type_definition_test.dart

@@ -57,6 +57,16 @@ const a = [!12^.3!];
     _expectSdkCoreType(result, 'double');
   }
 
+  Future<void> test_doubleLiteral_wildcard() async {
+    var code = TestCode.parse('''
+const _ = [!12^.3!];
+''');
+
+    var result = await _getResult(code);
+    expect(result.originSelectionRange, code.range.range);
+    _expectSdkCoreType(result, 'double');
+  }
+
   Future<void> test_getter() async {
     var code = TestCode.parse('''
 class A {
@@ -143,6 +153,18 @@ void f(String a) {
     _expectSdkCoreType(result, 'String');
   }
 
+  Future<void> test_parameter_wildcard() async {
+    var code = TestCode.parse('''
+void f(String _) {
+  f([!'te^st'!]);
+}
+''');
+
+    var result = await _getResult(code);
+    expect(result.originSelectionRange, code.range.range);
+    _expectSdkCoreType(result, 'String');
+  }
+
   Future<void> test_parameterName() async {
     var code = TestCode.parse('''
 void f({String? a}) {
@@ -192,6 +214,19 @@ const a = [!'te^st string'!];
     _expectSdkCoreType(result, 'String');
   }
 
+  Future<void> test_type_underscore() async {
+    var code = TestCode.parse('''
+class _ { }
+
+_ a = _();
+_ f() => [!^a!];
+''');
+
+    var result = await _getResult(code);
+    expect(result.targetUri, mainFileUri);
+    expect(result.targetRange, rangeOfString(code, 'class _ { }'));
+  }
+
   Future<void> test_unopenedFile() async {
     var code = TestCode.parse('''
 const a = [!'^'!];