DRTVWR-588: Eliminate APR and Boost.Phoenix from NamedTempFile.

NamedTempFile used to use APR calls to discover a suitable temp directory,
synthesize a temp filename template, generate the unique file, write its
content and ultimately delete it. This required a reference to gAPRPoolp as
the default value of an optional constructor argument in case some usage
demanded an alternative APR memory pool. It also used Boost.Phoenix
placeholders to magically synthesize a callable. Replace APR calls with
Boost.Filesystem; replace Boost.Phoenix with lambdas. Break out unique path
generation logic as static NamedTempFile::temp_path(). In a nod to GitHub
Actions builds, honor RUNNER_TEMP environment variable if set.

test.cpp's RecordToTempFile need no longer pass an apr_pool_t* to
NamedTempFile.

NamedTempFile's constructor now accepts an optional suffix, making subclass
NamedExtTempFile nearly trivial. It no longer needs to create or remove a
symlink, for which it used to use APR calls.

llprocess_test.cpp's NamedTempDir used to use Python's tempfile.mkdtemp() to
create a temp directory, and apr_dir_remove() to destroy it. Replace both with
NamedTempFile::temp_path() and Boost.Filesystem.

Also add diagnostic output for LLProcess test failure. If llprocess_test
cannot launch a child process, notice the APR_LOG environment variable
recognized by our patched apr_suite to engage logging, and report the contents
of that file.

0 files changed, 0 insertions, 0 deletions