ASAN: Direct memory leaks in qttools/src/linguist/lupdate/cpp.cpp break ASAN-enabled builds

#include <QObject>
QObject::tr("test");

$ LSAN_OPTIONS=max_leaks=1 /opt/qt58-asan/bin/lupdate -silent foo.cpp 
lupdate warning: no TS files specified. Only diagnostics will be produced.

=================================================================
==557466==ERROR: LeakSanitizer: detected memory leaks

The 1 top leak(s):
Direct leak of 80 byte(s) in 1 object(s) allocated from:
    #0 0x514b78 in operator new(unsigned long) /var/tmp/portage/sys-devel/llvm-3.8.1/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_new_delete.cc:62
    #1 0x955046 in loadCPP(Translator&, QStringList const&, ConversionData&) /home/jkt/work/prog/qt5/qttools/src/linguist/lupdate/cpp.cpp:2292:27
    #2 0x8925a1 in processSources(Translator&, QStringList const&, ConversionData&) /home/jkt/work/prog/qt5/qttools/src/linguist/lupdate/main.cpp:548:5
    #3 0x889ce7 in main /home/jkt/work/prog/qt5/qttools/src/linguist/lupdate/main.cpp:1032:9
    #4 0x7f3ee96d0733 in __libc_start_main /var/tmp/portage/sys-libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289
    #5 0x43a4b8 in _start (/opt/qt58-asan/bin/lupdate+0x43a4b8)

Omitting 10 more leak(s).
SUMMARY: AddressSanitizer: 712 byte(s) leaked in 11 allocation(s)
$ echo $?
1