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2be791e32a
On arm64 targets, when the crashing pc is 0, the caller frame can be found by looking at $lr, but the crash reports don't use that trick to show the actual crashing frame. This patch adds that stack frame that lldb shows. Also fix an issue where some register names were printed as having a prefix of 'None'. Differential Revision: https://reviews.llvm.org/D125042 rdar://92631787