[lldb/crashlog] Fix breaking changes in textual report format

This patch should address some register parsing issue in the legacy
report format.

rdar://107210149

Signed-off-by: Med Ismail Bennani <[email protected]>

Author: medismailben

lldb/examples/python/crashlog.py

@@ -849,10 +849,10 @@ def parse_errors(self, json_data):
 
 class TextCrashLogParser(CrashLogParser):
     parent_process_regex = re.compile(r"^Parent Process:\s*(.*)\[(\d+)\]")
-    thread_state_regex = re.compile(r"^Thread \d+ crashed with")
+    thread_state_regex = re.compile(r"^Thread (\d+ crashed with|State)")
     thread_instrs_regex = re.compile(r"^Thread \d+ instruction stream")
-    thread_regex = re.compile(r"^Thread (\d+).*:")
-    app_backtrace_regex = re.compile(r"^Application Specific Backtrace (\d+).*:")
+    thread_regex = re.compile(r"^Thread (\d+).*")
+    app_backtrace_regex = re.compile(r"^Application Specific Backtrace (\d+).*")
 
     class VersionRegex:
         version = r"\(.+\)|(?:arm|x86_)[0-9a-z]+"
@@ -1081,7 +1081,10 @@ def parse_normal(self, line):
             if thread_state_match:
                 self.app_specific_backtrace = False
                 thread_state_match = self.thread_regex.search(line)
-                thread_idx = int(thread_state_match.group(1))
+                if thread_state_match:
+                    thread_idx = int(thread_state_match.group(1))
+                else:
+                    thread_idx = self.crashlog.crashed_thread_idx
                 self.parse_mode = self.CrashLogParseMode.THREGS
                 self.thread = self.crashlog.threads[thread_idx]
                 return