Replace llvm::error_code with std::error_code.

llvm-svn: 210780
diff --git a/clang/lib/Driver/Compilation.cpp b/clang/lib/Driver/Compilation.cpp
index 8ec643c..4baa195 100644
--- a/clang/lib/Driver/Compilation.cpp
+++ b/clang/lib/Driver/Compilation.cpp
@@ -86,7 +86,7 @@
   if (!llvm::sys::fs::can_write(File) || !llvm::sys::fs::is_regular_file(File))
     return true;
 
-  if (llvm::error_code EC = llvm::sys::fs::remove(File)) {
+  if (std::error_code EC = llvm::sys::fs::remove(File)) {
     // Failure is only failure if the file exists and is "regular". We checked
     // for it being regular before, and llvm::sys::fs::remove ignores ENOENT,
     // so we don't need to check again.
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 1d7f180..67e0122 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -1823,8 +1823,7 @@
 std::string Driver::GetTemporaryPath(StringRef Prefix, const char *Suffix)
   const {
   SmallString<128> Path;
-  llvm::error_code EC =
-      llvm::sys::fs::createTemporaryFile(Prefix, Suffix, Path);
+  std::error_code EC = llvm::sys::fs::createTemporaryFile(Prefix, Suffix, Path);
   if (EC) {
     Diag(clang::diag::err_unable_to_make_temp) << EC.message();
     return "";
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index dcbdd71..e18f71d 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -2018,7 +2018,7 @@
       (llvm::array_lengthof(LibSuffixes) - (TargetArch != llvm::Triple::x86));
   for (unsigned i = 0; i < NumLibSuffixes; ++i) {
     StringRef LibSuffix = LibSuffixes[i];
-    llvm::error_code EC;
+    std::error_code EC;
     for (llvm::sys::fs::directory_iterator LI(LibDir + LibSuffix, EC), LE;
          !EC && LI != LE; LI = LI.increment(EC)) {
       StringRef VersionText = llvm::sys::path::filename(LI->path());
@@ -2228,7 +2228,7 @@
 
   // Determine version of GCC libraries and headers to use.
   const std::string HexagonDir(GnuDir + "/lib/gcc/hexagon");
-  llvm::error_code ec;
+  std::error_code ec;
   GCCVersion MaxVersion= GCCVersion::Parse("0.0.0");
   for (llvm::sys::fs::directory_iterator di(HexagonDir, ec), de;
        !ec && di != de; di = di.increment(ec)) {