[vala/staging] Bump version suffix to 0.54

[Rico Tzschichholz <ricotz src gnome org>]

commit 5aa1911fa48bbb88b5db2d7075147e78d4b538c7
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Apr 15 16:49:14 2021 +0200

    Bump version suffix to 0.54

 configure.ac                        | 2 +-
 tests/parser/preprocessor-vala.vala | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index ec67d71bd..51431f935 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([1.11 dist-xz no-dist-gzip subdir-objects])
 AM_MAINTAINER_MODE([enable])
 
-API_VERSION=0.52
+API_VERSION=0.54
 PACKAGE_SUFFIX="-$API_VERSION"
 
 VALA_MAJOR_VERSION=`echo $PACKAGE_VERSION | cut -d. -f1 | sed s/[[a-zA-Z\-]].*//g`
diff --git a/tests/parser/preprocessor-vala.vala b/tests/parser/preprocessor-vala.vala
index b5ace3892..862af581a 100644
--- a/tests/parser/preprocessor-vala.vala
+++ b/tests/parser/preprocessor-vala.vala
@@ -51,6 +51,8 @@ void main () {
        assert_not_reached ();
 #elif !VALA_0_52
        assert_not_reached ();
+#elif !VALA_0_54
+       assert_not_reached ();
 #else
        assert (true);
 #endif