[gcc r15-7818] libgo: bump libgo version for GCC 15 release

[Ian Lance Taylor]

https://gcc.gnu.org/g:8d7762945bba3c8321b5856cee3d5e5aed55facf

commit r15-7818-g8d7762945bba3c8321b5856cee3d5e5aed55facf
Author: Ian Lance Taylor <iant@golang.org>
Date:   Mon Mar 3 19:39:30 2025 -0800

    libgo: bump libgo version for GCC 15 release
    
    For PR go/119098
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/654477

Diff:
---
 gcc/go/gofrontend/MERGE | 2 +-
 libgo/configure         | 2 +-
 libgo/configure.ac      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 7c93a2e91233..b6fdf72dcec4 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-96014b17d9a846d1d878ac4732c2baaf5ee8b2d2
+f5c453aa726ebb509e7b8cb20df7734f0e411404
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/libgo/configure b/libgo/configure
index c0d0a1560f59..b1a2228fa1b4 100755
--- a/libgo/configure
+++ b/libgo/configure
@@ -2611,7 +2611,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ac_config_headers="$ac_config_headers config.h"
 
 
-libtool_VERSION=23:0:0
+libtool_VERSION=24:0:0
 
 
 # Default to --enable-multilib
diff --git a/libgo/configure.ac b/libgo/configure.ac
index 898091276f71..0b05551aacb2 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -10,7 +10,7 @@ AC_INIT(package-unused, version-unused,, libgo)
 AC_CONFIG_SRCDIR(Makefile.am)
 AC_CONFIG_HEADER(config.h)
 
-libtool_VERSION=23:0:0
+libtool_VERSION=24:0:0
 AC_SUBST(libtool_VERSION)
 
 AM_ENABLE_MULTILIB(, ..)