[NFC] Header cleanup

Summary: Removed unused headers, replaced some headers with forward class declarations

Patch by: Eugene <claprix@yandex.ru>

Differential Revision: https://reviews.llvm.org/D20100

llvm-svn: 275882

4 files changed, 1 insertions, 6 deletions

diff --git a/clang/lib/Basic/DiagnosticOptions.cpp b/clang/lib/Basic/DiagnosticOptions.cpp
index f54a0ef4edb..93c2196ca97 100644
--- a/clang/lib/Basic/DiagnosticOptions.cpp
+++ b/clang/lib/Basic/DiagnosticOptions.cpp
@@ -16,7 +16,7 @@
 
 namespace clang {
 
-raw_ostream& operator<<(raw_ostream& Out, DiagnosticLevelMask M) {
+raw_ostream &operator<<(raw_ostream &Out, DiagnosticLevelMask M) {
   using UT = std::underlying_type<DiagnosticLevelMask>::type;
   return Out << static_cast<UT>(M);
 }
diff --git a/clang/lib/Basic/FileManager.cpp b/clang/lib/Basic/FileManager.cpp
index ce9b7e1bb48..20894180d78 100644
--- a/clang/lib/Basic/FileManager.cpp
+++ b/clang/lib/Basic/FileManager.cpp
@@ -26,10 +26,7 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/raw_ostream.h"
-#include <map>
-#include <set>
 #include <string>
-#include <system_error>
 
 using namespace clang;
 
diff --git a/clang/lib/Basic/SourceLocation.cpp b/clang/lib/Basic/SourceLocation.cpp
index d254e8620a9..a58d0465a6f 100644
--- a/clang/lib/Basic/SourceLocation.cpp
+++ b/clang/lib/Basic/SourceLocation.cpp
@@ -14,7 +14,6 @@
 #include "clang/Basic/SourceLocation.h"
 #include "clang/Basic/PrettyStackTrace.h"
 #include "clang/Basic/SourceManager.h"
-#include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstdio>
 using namespace clang;
diff --git a/clang/lib/Basic/SourceManager.cpp b/clang/lib/Basic/SourceManager.cpp
index 1e83b63cf82..605f990e41d 100644
--- a/clang/lib/Basic/SourceManager.cpp
+++ b/clang/lib/Basic/SourceManager.cpp
@@ -25,7 +25,6 @@
 #include "llvm/Support/raw_ostream.h"
 #include <algorithm>
 #include <cstring>
-#include <string>
 
 using namespace clang;
 using namespace SrcMgr;