[lldb][roar] Enable JITLoadList creation with minidump.

Summary:
Remove override for Process::GetJITLoaders(), so that it will be invoked to create JITLoader::LoadPlugins.
This is needed for minidump debugging of ROAR produced binaries.

Test Plan:
main.cpp -- P1888415270
helper.cpp -- P1888415793
build.sh -- P1888416364
commandsPGO.txt -- P1888416975
```
ROAR_RUN_IN_PROCESS= ROAROPTS="--sampled-instr-burst-duration=65536" /home/ayermolo/local/roar-17/build/Release/fbcode-x86_64/toolchain/bin/lldb --source commandsPGO.txt mainJit.exe
/home/ayermolo/local/roar-17/build/Release/fbcode-x86_64/toolchain/bin/lldb -c core.lldb  mainJit.exe
```
```
lldb process save-core -s=mixed-memory /home/ayermolo/local/tasks/T231371260/smallRepro/core.lldb

```

 {F1980819973}

Rollback Plan:

Reviewers: jalalonde, #roar-jit, #lldb_team, ottoni

Reviewed By: jalalonde

Differential Revision: https://phabricator.intern.facebook.com/D79398101

Tasks: T227540238
(cherry picked from commit 3fffac6dba33d9d4efc3468c367800f7d5bcc0ff)

Author: Alexander Yermolovich

lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp

@@ -22,7 +22,6 @@
 #include "lldb/Interpreter/OptionArgParser.h"
 #include "lldb/Interpreter/OptionGroupBoolean.h"
 #include "lldb/Target/DynamicLoader.h"
-#include "lldb/Target/JITLoaderList.h"
 #include "lldb/Target/MemoryRegionInfo.h"
 #include "lldb/Target/SectionLoadList.h"
 #include "lldb/Target/Target.h"
@@ -601,17 +600,6 @@ bool ProcessMinidump::GetProcessInfo(ProcessInstanceInfo &info) {
   return true;
 }
 
-// For minidumps there's no runtime generated code so we don't need JITLoader(s)
-// Avoiding them will also speed up minidump loading since JITLoaders normally
-// try to set up symbolic breakpoints, which in turn may force loading more
-// debug information than needed.
-JITLoaderList &ProcessMinidump::GetJITLoaders() {
-  if (!m_jit_loaders_up) {
-    m_jit_loaders_up = std::make_unique<JITLoaderList>();
-  }
-  return *m_jit_loaders_up;
-}
-
 #define INIT_BOOL(VAR, LONG, SHORT, DESC) \
     VAR(LLDB_OPT_SET_1, false, LONG, SHORT, DESC, false, true)
 #define APPEND_OPT(VAR) \

lldb/source/Plugins/Process/minidump/ProcessMinidump.h

@@ -103,8 +103,6 @@ class ProcessMinidump : public PostMortemProcess {
                                    llvm::StringRef name,
                                    lldb_private::ModuleSpec module_spec);
 
-  JITLoaderList &GetJITLoaders() override;
-
 private:
   lldb::DataBufferSP m_core_data;
   llvm::ArrayRef<minidump::Thread> m_thread_list;