Rename LTTNG_ALLOCATE_COMPOUND_LITERAL_ON_HEAP to
LTTNG_UST_ALLOCATE_COMPOUND_LITERAL_ON_HEAP to use the LTTNG_UST_
prefix. This is public API, but was never documented, recently
introduced, and does not appear to be actively used by any open source
project. Since we are doing an ABI bump, clean this up.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Id59c9a589568826008accb3a810678cdddf242e3