It's wrong to have ${srcdir} in run_dump_test "source:" lines, as
run_dump_test adds $srcdir/$subdir/ to the line passed to the shell
except when the source path starts with "./". The tests work
currently because the shell expands ${srcdir} to an empty string.
PR 31728
* testsuite/ld-i386/code16.d: Correct "source:".
* testsuite/ld-x86-64/code16.d: Likewise.
* testsuite/ld-x86-64/rela.d: Likewise.
#name: i386 R_386_PC16 reloc in 16-bit mode
#as: --32 -mx86-used-note=no --generate-missing-build-notes=no
-#source: ${srcdir}/../../../gas/testsuite/gas/i386/code16-2.s
+#source: ../../../gas/testsuite/gas/i386/code16-2.s
#ld: -T code16.t
#objdump: -dw -Mi8086
#name: x86-64 R_X86_64_PC16 reloc in 16-bit mode
#as: --64 -mx86-used-note=no --generate-missing-build-notes=no
-#source: ${srcdir}/../../../gas/testsuite/gas/i386/code16-2.s
+#source: ../../../gas/testsuite/gas/i386/code16-2.s
#ld: -T code16.t
#objdump: -dw -Mi8086
#name: x86-64 rela relocs w/ non-zero relocated fields
#as: --64
-#source: ${srcdir}/../../../gas/testsuite/gas/i386/rela.s
+#source: ../../../gas/testsuite/gas/i386/rela.s
#ld: -melf_x86_64
#objdump: -sj .data