Use <system_error> rather than llvm/Support/system_error.h.

Rafael removed the latter in r210803.

Swift SVN r18842

lib/Driver/OutputFileMap.cpp

@@ -13,7 +13,7 @@
 #include "swift/Driver/OutputFileMap.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 using namespace swift;
 using namespace swift::driver;

lib/Immediate/Immediate.cpp

@@ -58,7 +58,6 @@
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
 #include "llvm/Transforms/IPO.h"
 #include "llvm/Transforms/IPO/PassManagerBuilder.h"
 
@@ -71,6 +70,7 @@
 #include <wchar.h>
 #include <histedit.h>
 #include <dlfcn.h>
+#include <system_error>
 
 using namespace swift;
 

lib/Sema/NameBinding.cpp

@@ -26,9 +26,9 @@
 #include "llvm/ADT/TinyPtrVector.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/SaveAndRestore.h"
-#include "llvm/Support/system_error.h"
 #include "llvm/Support/Path.h"
 #include <algorithm>
+#include <system_error>
 using namespace swift;
 
 //===----------------------------------------------------------------------===//

lib/Sema/SourceLoader.cpp

@@ -26,7 +26,7 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/SaveAndRestore.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 using namespace swift;
 

lib/Serialization/SerializedModuleLoader.cpp

@@ -21,7 +21,7 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Debug.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 using namespace swift;
 

tools/swift-ide-test/swift-ide-test.cpp

@@ -41,7 +41,7 @@
 #include "llvm/Support/Process.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Signals.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 #include <string>