[binutils-gdb] Use require is_elf_target

[Tom Tromey <tromey@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=28343f921b49dc01414615e5e8a2803ed5fb57cf

commit 28343f921b49dc01414615e5e8a2803ed5fb57cf
Author: Tom Tromey <tom@tromey.com>
Date:   Wed Dec 14 09:50:51 2022 -0700

    Use require is_elf_target
    
    This changes some tests to use "require is_elf_target".

Diff:
---
 gdb/testsuite/gdb.base/rtld-step.exp | 4 +---
 gdb/testsuite/gdb.base/sym-file.exp  | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/gdb/testsuite/gdb.base/rtld-step.exp b/gdb/testsuite/gdb.base/rtld-step.exp
index 473c6c9f7d5..99f1a822b8d 100644
--- a/gdb/testsuite/gdb.base/rtld-step.exp
+++ b/gdb/testsuite/gdb.base/rtld-step.exp
@@ -35,9 +35,7 @@
 # or for non-ELF targets.  (We're not really testing or building
 # shared libraries here, but having a RTLD implies having shared
 # libraries on the target.)
-if { [skip_shlib_tests] || ![is_elf_target] } {
-    return 0
-}
+require !skip_shlib_tests is_elf_target
 
 # (Pretend) RTLD file names and flags:
 set rtld_basename ${::gdb_test_file_name}-rtld
diff --git a/gdb/testsuite/gdb.base/sym-file.exp b/gdb/testsuite/gdb.base/sym-file.exp
index 666bf96d38e..c4c5f746943 100644
--- a/gdb/testsuite/gdb.base/sym-file.exp
+++ b/gdb/testsuite/gdb.base/sym-file.exp
@@ -29,9 +29,7 @@
 # 13) Check that the execution can continue without error.
 # 14) Regression test for a stale breakpoints bug.
 
-if {![is_elf_target]} {
-    return 0
-}
+require is_elf_target
 
 require !skip_shlib_tests