[lldb/crashlog] Remove tempfile prefix from inlined symbol object file

This patch changes the way we generate the ObjectFileJSON files
containing the inlined symbols from the crash report to remove the
tempfile prefix from the object file name.

To do so, instead of creating a new tempfile for each module, we create a
temporary directory that contains each module object file with the same
name as the module.

This makes the backtraces only contain the module name without the
temfile prefix which makes it look like a regular stackframe.

Differential Revision: https://reviews.llvm.org/D151045

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

lldb/examples/python/scripted_process/crashlog_scripted_process.py

@@ -1,4 +1,4 @@
-import os,json,struct,signal,uuid
+import os, json, struct, signal, uuid, tempfile
 
 from typing import Any, Dict
 
@@ -38,16 +38,17 @@ class CrashLogScriptedProcess(ScriptedProcess):
                         for image in self.crashlog.find_images_with_identifier(ident):
                             image.resolve = True
 
-        for image in self.crashlog.images:
-            if image not in self.loaded_images:
-                if image.uuid == uuid.UUID(int=0):
-                    continue
-                err = image.add_module(self.target)
-                if err:
-                    # Append to SBCommandReturnObject
-                    print(err)
-                else:
-                    self.loaded_images.append(image)
+        with tempfile.TemporaryDirectory() as obj_dir:
+            for image in self.crashlog.images:
+                if image not in self.loaded_images:
+                    if image.uuid == uuid.UUID(int=0):
+                        continue
+                    err = image.add_module(self.target, obj_dir)
+                    if err:
+                        # Append to SBCommandReturnObject
+                        print(err)
+                    else:
+                        self.loaded_images.append(image)
 
         for thread in self.crashlog.threads:
             if hasattr(thread, 'app_specific_backtrace') and thread.app_specific_backtrace: