[cherry-pick][swift/release/6.0] [lldb] Fix type lookup in DWARF .o files via debug map (#87177) #8517
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An inverted condition causes
SymbolFileDWARFDebugMap::FindTypes
to bail out after inspecting the first .o file in each module.The same kind of bug is found in
SymbolFileDWARFDebugMap::ParseDeclsForContext
.Correct both early exit conditions and add a regression test for lookup of up a type defined in a secondary compilation unit.
Fixes llvm#87176
(cherry picked from commit 154cea4)