After landing rL341457, we started seeing a failure on the swift-lldb bots. The change was correct and pretty straightforward, a DW_OP_constu was replaced with DW_OP_lit23, the value remaining identical.
0x000000f4: DW_TAG_variable DW_AT_location (0x00000000 [0x0000000100000a51, 0x0000000100000d47): DW_OP_lit23, DW_OP_stack_value) DW_AT_name ("number")
However, this broke LLDB:
(Int) number = <extracting data from value failed>
The value was read correctly, but apparently the value's type was different. When reading a constu it was reading a uint64 (m_type = e_ulonglong) while for the literal, it got a signed int (m_type = e_sint). This change makes sure we read the value as an unsigned.