[lldb][asan] Add temporary logging to ReportRetriever

`TestReportData.py` is failing on the macOS CI with:
```
Traceback (most recent call last):
  File "/Users/ec2-user/jenkins/workspace/llvm.org/lldb-cmake/llvm-project/lldb/packages/Python/lldbsuite/test/lldbtest.py", line 1784, in test_method
    return attrvalue(self)
  File "/Users/ec2-user/jenkins/workspace/llvm.org/lldb-cmake/llvm-project/lldb/packages/Python/lldbsuite/test/decorators.py", line 148, in wrapper
    return func(*args, **kwargs)
  File "/Users/ec2-user/jenkins/workspace/llvm.org/lldb-cmake/llvm-project/lldb/test/API/functionalities/asan/TestReportData.py", line 28, in test_libsanitizers_asan
    self.asan_tests(libsanitizers=True)
  File "/Users/ec2-user/jenkins/workspace/llvm.org/lldb-cmake/llvm-project/lldb/test/API/functionalities/asan/TestReportData.py", line 60, in asan_tests
    self.expect(
  File "/Users/ec2-user/jenkins/workspace/llvm.org/lldb-cmake/llvm-project/lldb/packages/Python/lldbsuite/test/lldbtest.py", line 2490, in expect
    self.fail(log_msg)
AssertionError: Ran command:
"thread list"

Got output:
Process 3474 stopped
* thread #1: tid = 0x38b5e9, 0x00007ff80f563b52 libsystem_kernel.dylib`__pthread_kill + 10, queue = 'com.apple.main-thread', stop reason = signal SIGABRT

Expecting sub string: "stopped" (was found)
Expecting sub string: "stop reason = Use of deallocated memory" (was not found)
Process should be stopped due to ASan report
```

There isn't much to go off of in the log, so adding more to help us debug this.

0 files changed, 0 insertions, 0 deletions