[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, 7 insertions, 7 deletions

diff --git a/lldb/source/Core/Section.cpp b/lldb/source/Core/Section.cpp
index 05d1468314c..a0d4cee4739 100644
--- a/lldb/source/Core/Section.cpp
+++ b/lldb/source/Core/Section.cpp
@@ -342,7 +342,7 @@ void Section::DumpName(Stream *s) const {
     s->PutChar('.');
   } else {
     // The top most section prints the module basename
-    const char *name = NULL;
+    const char *name = nullptr;
     ModuleSP module_sp(GetModule());
 
     if (m_obj_file) {
@@ -509,7 +509,7 @@ SectionList::FindSectionByName(ConstString section_dstr) const {
     const_iterator sect_iter;
     const_iterator end = m_sections.end();
     for (sect_iter = m_sections.begin();
-         sect_iter != end && sect_sp.get() == NULL; ++sect_iter) {
+         sect_iter != end && sect_sp.get() == nullptr; ++sect_iter) {
       Section *child_section = sect_iter->get();
       if (child_section) {
         if (child_section->GetName() == section_dstr) {
@@ -530,7 +530,7 @@ SectionSP SectionList::FindSectionByID(user_id_t sect_id) const {
     const_iterator sect_iter;
     const_iterator end = m_sections.end();
     for (sect_iter = m_sections.begin();
-         sect_iter != end && sect_sp.get() == NULL; ++sect_iter) {
+         sect_iter != end && sect_sp.get() == nullptr; ++sect_iter) {
       if ((*sect_iter)->GetID() == sect_id) {
         sect_sp = *sect_iter;
         break;
@@ -567,7 +567,7 @@ SectionSP SectionList::FindSectionContainingFileAddress(addr_t vm_addr,
   const_iterator sect_iter;
   const_iterator end = m_sections.end();
   for (sect_iter = m_sections.begin();
-       sect_iter != end && sect_sp.get() == NULL; ++sect_iter) {
+       sect_iter != end && sect_sp.get() == nullptr; ++sect_iter) {
     Section *sect = sect_iter->get();
     if (sect->ContainsFileAddress(vm_addr)) {
       // The file address is in this section. We need to make sure one of our
@@ -577,7 +577,7 @@ SectionSP SectionList::FindSectionContainingFileAddress(addr_t vm_addr,
         sect_sp = sect->GetChildren().FindSectionContainingFileAddress(
             vm_addr, depth - 1);
 
-      if (sect_sp.get() == NULL && !sect->IsFake())
+      if (sect_sp.get() == nullptr && !sect->IsFake())
         sect_sp = *sect_iter;
     }
   }
@@ -585,7 +585,7 @@ SectionSP SectionList::FindSectionContainingFileAddress(addr_t vm_addr,
 }
 
 bool SectionList::ContainsSection(user_id_t sect_id) const {
-  return FindSectionByID(sect_id).get() != NULL;
+  return FindSectionByID(sect_id).get() != nullptr;
 }
 
 void SectionList::Dump(Stream *s, Target *target, bool show_header,
@@ -608,7 +608,7 @@ void SectionList::Dump(Stream *s, Target *target, bool show_header,
   const_iterator sect_iter;
   const_iterator end = m_sections.end();
   for (sect_iter = m_sections.begin(); sect_iter != end; ++sect_iter) {
-    (*sect_iter)->Dump(s, target_has_loaded_sections ? target : NULL, depth);
+    (*sect_iter)->Dump(s, target_has_loaded_sections ? target : nullptr, depth);
   }
 
   if (show_header && !m_sections.empty())