Update LLDB snapshot to upstream r241361

Notable upstream commits (upstream revision in parens):

- Add a JSON producer to LLDB (228636)
- Don't crash on bad DWARF expression (228729)
- Add support of DWARFv3 DW_OP_form_tls_address (231342)
- Assembly profiler for MIPS64 (232619)
- Handle FreeBSD/arm64 core files (233273)
- Read/Write register for MIPS64 (233685)
- Rework LLDB system initialization (233758)
- SysV ABI for aarch64 (236098)
- MIPS software single stepping (236696)
- FreeBSD/arm live debugging support (237303)
- Assembly profiler for mips32 (237420)
- Parse function name from DWARF DW_AT_abstract_origin (238307)
- Improve LLDB prompt handling (238313)
- Add real time signals support to FreeBSDSignals (238316)
- Fix race in IOHandlerProcessSTDIO (238423)
- MIPS64 Branch instruction emulation for SW single stepping (238820)
- Improve OSType initialization in elf object file's arch_spec (239148)
- Emulation of MIPS64 floating-point branch instructions (239996)
- ABI Plugin for MIPS32 (239997)
- ABI Plugin for MIPS64 (240123)
- MIPS32 branch emulation and single stepping (240373)
- Improve instruction emulation based stack unwinding on ARM (240533)
- Add branch emulation to aarch64 instruction emulator (240769)

1 files changed, 36 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Utility/LLDBAssert.cpp b/contrib/llvm/tools/lldb/source/Utility/LLDBAssert.cpp
new file mode 100644
index 0000000..68aa872
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Utility/LLDBAssert.cpp
@@ -0,0 +1,36 @@
+//===--------------------- LLDBAssert.cpp --------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/LLDBAssert.h"
+
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Signals.h"
+
+using namespace llvm;
+using namespace lldb_private;
+
+void
+lldb_private::lldb_assert (bool expression,
+                           const char* expr_text,
+                           const char* func,
+                           const char* file,
+                           unsigned int line)
+{
+    if (expression)
+        ;
+    else
+    {
+        errs() << format("Assertion failed: (%s), function %s, file %s, line %u\n",
+                   expr_text, func, file, line);
+        errs() << "backtrace leading to the failure:\n";
+        llvm::sys::PrintStackTrace(errs());
+        errs() << "please file a bug report against lldb reporting this failure log, and as many details as possible\n";
+    }
+}