Merging r344605:

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r344605 | jankratochvil | 2018-10-16 04:38:22 -0700 (Tue, 16 Oct 2018) | 12 lines

Fix: Assertion failed: (!m_first_die || m_first_die == m_die_array.front()), function ExtractDIEsRWLocked

xbolva00 bugreported $subj in: https://reviews.llvm.org/D46810#1247410
It can happen only from the line:
	m_die_array.back().SetEmptyChildren(true);

In the case DW_TAG_compile_unit has DW_CHILDREN_yes but there is only 0 (end of
list, no children present). Therefore the assertion can fortunately happen only
with a hand-crafted DWARF or with DWARF from some suboptimal compilers.

Differential Revision: https://reviews.llvm.org/D53255

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git-svn-id: https://llvm.org/svn/llvm-project/lldb/branches/release_70@347030 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed