[lldb] NFC modernize codebase with modernize-use-nullptr

Summary:
NFC = [[ https://llvm.org/docs/Lexicon.html#nfc | Non functional change ]]

This commit is the result of modernizing the LLDB codebase by using
`nullptr` instread of `0` or `NULL`. See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
for more information.

This is the command I ran and I to fix and format the code base:

```
run-clang-tidy.py \
	-header-filter='.*' \
	-checks='-*,modernize-use-nullptr' \
	-fix ~/dev/llvm-project/lldb/.* \
	-format \
	-style LLVM \
	-p ~/llvm-builds/debug-ninja-gcc
```

NOTE: There were also changes to `llvm/utils/unittest` but I did not
include them because I felt that maybe this library shall be updated in
isolation somehow.

NOTE: I know this is a rather large commit but it is a nobrainer in most
parts.

Reviewers: martong, espindola, shafik, #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: arsenm, jvesely, nhaehnle, hiraditya, JDevlieghere, teemperor, rnkovacs, emaste, kubamracek, nemanjai, ki.stfu, javed.absar, arichardson, kbarton, jrtc27, MaskRay, atanasyan, dexonsmith, arphaman, jfb, jsji, jdoerfert, lldb-commits, llvm-commits

Tags: #lldb, #llvm

Differential Revision: https://reviews.llvm.org/D61847

llvm-svn: 361484

1 files changed, 6 insertions, 6 deletions

diff --git a/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp b/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp
index ad15f96..7d7453c 100644
--- a/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp
+++ b/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp
@@ -66,7 +66,7 @@ ObjectFile *ObjectFileJIT::CreateInstance(const lldb::ModuleSP &module_sp,
                                           lldb::offset_t length) {
   // JIT'ed object file is backed by the ObjectFileJITDelegate, never read from
   // a file
-  return NULL;
+  return nullptr;
 }
 
 ObjectFile *ObjectFileJIT::CreateMemoryInstance(const lldb::ModuleSP &module_sp,
@@ -75,7 +75,7 @@ ObjectFile *ObjectFileJIT::CreateMemoryInstance(const lldb::ModuleSP &module_sp,
                                                 lldb::addr_t header_addr) {
   // JIT'ed object file is backed by the ObjectFileJITDelegate, never read from
   // memory
-  return NULL;
+  return nullptr;
 }
 
 size_t ObjectFileJIT::GetModuleSpecifications(
@@ -88,7 +88,7 @@ size_t ObjectFileJIT::GetModuleSpecifications(
 
 ObjectFileJIT::ObjectFileJIT(const lldb::ModuleSP &module_sp,
                              const ObjectFileJITDelegateSP &delegate_sp)
-    : ObjectFile(module_sp, NULL, 0, 0, DataBufferSP(), 0), m_delegate_wp() {
+    : ObjectFile(module_sp, nullptr, 0, 0, DataBufferSP(), 0), m_delegate_wp() {
   if (delegate_sp) {
     m_delegate_wp = delegate_sp;
     m_data.SetByteOrder(delegate_sp->GetByteOrder());
@@ -115,7 +115,7 @@ Symtab *ObjectFileJIT::GetSymtab() {
   ModuleSP module_sp(GetModule());
   if (module_sp) {
     std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
-    if (m_symtab_up == NULL) {
+    if (m_symtab_up == nullptr) {
       m_symtab_up.reset(new Symtab(this));
       std::lock_guard<std::recursive_mutex> symtab_guard(
           m_symtab_up->GetMutex());
@@ -159,10 +159,10 @@ void ObjectFileJIT::Dump(Stream *s) {
 
     SectionList *sections = GetSectionList();
     if (sections)
-      sections->Dump(s, NULL, true, UINT32_MAX);
+      sections->Dump(s, nullptr, true, UINT32_MAX);
 
     if (m_symtab_up)
-      m_symtab_up->Dump(s, NULL, eSortOrderNone);
+      m_symtab_up->Dump(s, nullptr, eSortOrderNone);
   }
 }