[gobject-introspection] Add forever scope

[Emmanuele Bassi <ebassi src gnome org>]

commit 70aa8f521f10d64f0e3c26e9b572058410478f80
Author: Marcel Tiede <mt-dev tiede org>
Date:   Sun Jan 16 15:51:23 2022 +0000

    Add forever scope

 docs/gir-1.2.rnc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/docs/gir-1.2.rnc b/docs/gir-1.2.rnc
index f5728810..5ff101e1 100644
--- a/docs/gir-1.2.rnc
+++ b/docs/gir-1.2.rnc
@@ -524,8 +524,8 @@ grammar {
         attribute closure { xsd:integer }?,
         ## the parameter is a destroy_data for callbacks. The value points to a different parameter that is 
the actual callback
         attribute destroy { xsd:integer }?,
-        ## the parameter is a callback, the value indicates the lifetime of the call. For language bindings 
which want to know when the resources required to do the call can be freed. "notified" valid until a 
GDestroyNotify argument is called, "async" only valid for the duration of the first callback invocationi (can 
only be called once), "call" only valid for the duration of the call, can be called multiple times during the 
call. 
-        attribute scope { "notified" | "async" | "call" }?,
+        ## the parameter is a callback, the value indicates the lifetime of the call. For language bindings 
which want to know when the resources required to do the call can be freed. "notified" valid until a 
GDestroyNotify argument is called, "async" only valid for the duration of the first callback invocationi (can 
only be called once), "call" only valid for the duration of the call, can be called multiple times during the 
call, "forever" valid until the process terminates.
+        attribute scope { "notified" | "async" | "call" | "forever" }?,
         ## direction of the parameter. "in" goes into the callable, "out" for output parameters from the 
callable (reference in C++, var in Pascal, etc...), "inout" for both (like a pre-allocated structure which 
will be filled-in by the callable)
         attribute direction { "out" | "in" | "inout" }?,
         ## Binary attribute, true if the caller should allocate the parameter before calling the callable
@@ -568,8 +568,8 @@ grammar {
       attribute nullable { "0" | "1" }?,
       ## the parameter is a user_data for callbacks. The value points to a different parameter that is the 
actual callback
       attribute closure { xsd:integer }?,
-      ## the parameter is a callback, the value indicates the lifetime of the call. For language bindings 
which want to know when the resources required to do the call can be freed. "notified" valid until a 
GDestroyNotify argument is called, "async" only valid for the duration of the first callback invocationi (can 
only be called once), "call" only valid for the duration of the call, can be called multiple times during the 
call. 
-      attribute scope { "notified" | "async" | "call" }?,
+      ## the parameter is a callback, the value indicates the lifetime of the call. For language bindings 
which want to know when the resources required to do the call can be freed. "notified" valid until a 
GDestroyNotify argument is called, "async" only valid for the duration of the first callback invocationi (can 
only be called once), "call" only valid for the duration of the call, can be called multiple times during the 
call, "forever" valid until the process terminates.
+      attribute scope { "notified" | "async" | "call" | "forever" }?,
       ## the parameter is a destroy_data for callbacks. The value points to a different parameter that is 
the actual callback
       attribute destroy { xsd:integer }?,
       ##  Binary attribute, true if the parameter can be omitted from the introspected output