[vala/0.26] codegen: Fix detailed signal disconnect in async methods

[Luca Bruno <lucabru src gnome org>]

commit 71fa41b7cf2a302b8d627a4198b265e4f2305b8d
Author: Luca Bruno <lucabru src gnome org>
Date:   Mon Jan 12 15:09:14 2015 +0100

    codegen: Fix detailed signal disconnect in async methods
    
    Fixes bug 742621

 codegen/valagsignalmodule.vala    |    2 +-
 tests/Makefile.am                 |    1 +
 tests/asynchronous/bug742621.vala |   15 +++++++++++++++
 3 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valagsignalmodule.vala b/codegen/valagsignalmodule.vala
index 3f8e1ea..eff6781 100644
--- a/codegen/valagsignalmodule.vala
+++ b/codegen/valagsignalmodule.vala
@@ -618,7 +618,7 @@ public class Vala.GSignalModule : GObjectModule {
                        } else {
                                detail_temp_decl = get_temp_variable (gquark_type);
                                emit_temp_var (detail_temp_decl);
-                               parse_call.add_argument (new CCodeUnaryExpression 
(CCodeUnaryOperator.ADDRESS_OF, new CCodeIdentifier (detail_temp_decl.name)));
+                               parse_call.add_argument (new CCodeUnaryExpression 
(CCodeUnaryOperator.ADDRESS_OF, get_variable_cexpression (detail_temp_decl.name)));
                                parse_call.add_argument (new CCodeConstant ("TRUE"));
                        }
                        ccode.add_expression (parse_call);
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 85ca6b3..e505699 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -185,6 +185,7 @@ TESTS = \
        asynchronous/bug654336.vala \
        asynchronous/bug654337.vala \
        asynchronous/bug661961.vala \
+       asynchronous/bug742621.vala \
        asynchronous/closures.vala \
        dbus/basic-types.test \
        dbus/arrays.test \
diff --git a/tests/asynchronous/bug742621.vala b/tests/asynchronous/bug742621.vala
new file mode 100644
index 0000000..1577caf
--- /dev/null
+++ b/tests/asynchronous/bug742621.vala
@@ -0,0 +1,15 @@
+class Xyzzy : Object {
+    public bool b { get; set; }
+}
+
+Xyzzy? xyzzy = null;
+
+private void on_b() {
+}
+
+async void go_async() throws Error {
+    xyzzy.notify["b"].disconnect(on_b);
+}
+
+void main () {
+}