Add MatchType and TypeLambda for Scala3

Author: tanishiking

generator/src/main/protobuf/scalameta.proto

@@ -73,6 +73,8 @@ message Type {
     UniversalType universal_type = 10;
     ByNameType by_name_type = 13;
     RepeatedType repeated_type = 14;
+    LambdaType lambda_type = 24;
+    MatchType match_type = 25;
   }
 }
 
@@ -144,6 +146,21 @@ message RepeatedType {
   Type tpe = 1;
 }
 
+message LambdaType {
+  Scope parameters = 1;
+  Type return_type = 2;
+}
+
+message MatchType {
+  message CaseType {
+    Type key = 1;
+    Type body = 2;
+  }
+  Type scrutinee = 1;
+  repeated CaseType cases = 2;
+}
+
+
 message Constant {
   oneof sealed_value {
     UnitConstant unit_constant = 1;
@@ -414,4 +431,5 @@ message SelectTree {
 message TypeApplyTree {
   Tree function = 1;
   repeated Type type_arguments = 2;
-}
+}
+