Fixed two tests to clean up residual files

testsuite/expect/test17.7

@@ -128,6 +128,7 @@ if [file exists $file_err] {
 }
 
 if {$exit_code == 0} {
+	wait_for_file $tmp_dir/$file_err
 	exec $bin_rm -f $file_in $file_out $tmp_dir/$file_err
 	send_user "\nSUCCESS\n"
 }

testsuite/expect/test7.4

@@ -256,7 +256,7 @@ if {$matches != 12} {
 }
 
 if {$exit_code == 0} {
-	exec $bin_rm -f $test_prog ${test_prog}.o ${test_prog}.TVD.b3breakpoints
+	exec $bin_rm -f $test_prog ${test_prog}.o ${test_prog}.TVD.v3breakpoints ${test_prog}.TVD.v3breakpoints~
 	send_user "\nSUCCESS\n"
 }
 exit $exit_code