[LLDB] - Add basic support for .debug_rnglists section (DWARF5)

This adds a basic support of the .debug_rnglists section.
Only the DW_RLE_start_length and DW_RLE_end_of_list entries are supported.

Differential revision: https://reviews.llvm.org/D52981

llvm-svn: 344119
diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
index f92c994..57226bc 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -1205,6 +1205,7 @@
           case eSectionTypeDWARFDebugPubNames:
           case eSectionTypeDWARFDebugPubTypes:
           case eSectionTypeDWARFDebugRanges:
+          case eSectionTypeDWARFDebugRngLists:
           case eSectionTypeDWARFDebugStr:
           case eSectionTypeDWARFDebugStrOffsets:
           case eSectionTypeDWARFDebugTypes:
@@ -1494,7 +1495,7 @@
   if (section_name == g_sect_name_dwarf_debug_pubtypes)
     return eSectionTypeDWARFDebugPubTypes;
   if (section_name == g_sect_name_dwarf_debug_ranges)
-    return eSectionTypeDWARFDebugRanges;
+    return eSectionTypeDWARFDebugRanges; 
   if (section_name == g_sect_name_dwarf_debug_str)
     return eSectionTypeDWARFDebugStr;
   if (section_name == g_sect_name_dwarf_debug_types)