Deprecate with_nonreturn_void? methods

Author: soutaro

sig/method_types.rbs

@@ -53,6 +53,6 @@ module RBS
 
     def has_classish_type?: () -> bool
 
-    def with_nonreturn_void?: () -> bool
+    %a{deprecated} def with_nonreturn_void?: () -> bool
   end
 end

sig/types.rbs

@@ -54,7 +54,7 @@ module RBS
       # * The function return type is a return position (`() -> void`)
       # * Generic parameter is a return position (`Enumerator[Integer, void]`)
       #
-      def with_nonreturn_void?: () -> bool
+      %a{deprecated} def with_nonreturn_void?: () -> bool
     end
 
     # t represents union of all possible types.
@@ -213,7 +213,7 @@ module RBS
 
       def has_classish_type?: () -> bool
 
-      def with_nonreturn_void?: () -> bool
+      %a{deprecated} def with_nonreturn_void?: () -> bool
     end
 
     class Interface
@@ -452,7 +452,7 @@ module RBS
 
       def has_classish_type?: () -> bool
 
-      def with_nonreturn_void?: () -> bool
+      %a{deprecated} def with_nonreturn_void?: () -> bool
 
       def ==: (untyped) -> bool
 
@@ -495,7 +495,7 @@ module RBS
 
       def has_classish_type?: () -> bool
 
-      def with_nonreturn_void?: () -> bool
+      %a{deprecated} def with_nonreturn_void?: () -> bool
 
       # Returns `?`
       def param_to_s: () -> String