Replace a few uses of basename

[• rafael]

Summary

This replaces a few uses of basename with the recently introduced lit replacements.

[rnk]

lgtm

compiler-rt/test/asan/TestCases/Linux/coverage-missing.cc

 // cd %T
 // RUN: %clangxx_asan -fsanitize-coverage=func %s -o %dynamiclib -DFOOBAR -shared -fPIC
 // RUN: %clangxx_asan -fsanitize-coverage=func %s %dynamiclib -o %t -DMAIN
-// RUN: export LIBNAME=`basename %dynamiclib`
 // RUN: cd ..
 // RUN: rm -rf %T/coverage-missing
 // RUN: mkdir -p %T/coverage-missing
 // RUN: cd %T/coverage-missing
 // RUN: %env_asan_opts=coverage=1:coverage_dir=%T/coverage-missing %run %t x
-// RUN: %sancov print $LIBNAME.*.sancov > foo.txt
+// RUN: %sancov print %xdynamiclib_filename.*.sancov > foo.txt
 // RUN: rm *.sancov
 // RUN: count 2 < foo.txt
 // RUN: %env_asan_opts=coverage=1:coverage_dir=%T/coverage-missing %run %t x x
-// RUN: %sancov print $LIBNAME.*.sancov > bar.txt
+// RUN: %sancov print %xdynamiclib_filename.*.sancov > bar.txt
 // RUN: rm *.sancov
 // RUN: count 3 < bar.txt
 // RUN: %sancov missing %dynamiclib < foo.txt > foo-missing.txt

compiler-rt/test/asan/TestCases/Posix/coverage-sandboxing.cc

 // RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t a b 2>&1 | FileCheck %s --check-prefix=CHECK-sandbox
 // RUN: %sancov unpack coverage_sandboxing_test.sancov.packed
 // RUN: cd ..
-// RUN: %sancov print vanilla/`basename %dynamiclib`*.sancov > vanilla.txt
-// RUN: %sancov print sandbox1/`basename %dynamiclib`*.sancov > sandbox1.txt
-// RUN: %sancov print sandbox2/`basename %dynamiclib`*.sancov > sandbox2.txt
+// RUN: %sancov print vanilla/%xdynamiclib_filename*.sancov > vanilla.txt
+// RUN: %sancov print sandbox1/%xdynamiclib_filename*.sancov > sandbox1.txt
+// RUN: %sancov print sandbox2/%xdynamiclib_filename*.sancov > sandbox2.txt
 // RUN: diff vanilla.txt sandbox1.txt
 // RUN: diff vanilla.txt sandbox2.txt
 // RUN: rm -r %T/coverage_sandboxing_test