Header guard canonicalization, clang part.

Modifications made by clang-tidy with minor tweaks.

llvm-svn: 215557
diff --git a/clang/lib/Driver/InputInfo.h b/clang/lib/Driver/InputInfo.h
index 4eedd22..b23ba57 100644
--- a/clang/lib/Driver/InputInfo.h
+++ b/clang/lib/Driver/InputInfo.h
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef CLANG_LIB_DRIVER_INPUTINFO_H_
-#define CLANG_LIB_DRIVER_INPUTINFO_H_
+#ifndef LLVM_CLANG_LIB_DRIVER_INPUTINFO_H
+#define LLVM_CLANG_LIB_DRIVER_INPUTINFO_H
 
 #include "clang/Driver/Types.h"
 #include "llvm/Option/Arg.h"
diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h
index e8503e0..12da5ef 100644
--- a/clang/lib/Driver/ToolChains.h
+++ b/clang/lib/Driver/ToolChains.h
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef CLANG_LIB_DRIVER_TOOLCHAINS_H_
-#define CLANG_LIB_DRIVER_TOOLCHAINS_H_
+#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_H
+#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_H
 
 #include "Tools.h"
 #include "clang/Basic/VersionTuple.h"
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 985c72b..0ef740c 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -5379,7 +5379,7 @@
 
 bool mips::isUCLibc(const ArgList &Args) {
   Arg *A = Args.getLastArg(options::OPT_m_libc_Group);
-  return A && A->getOption().matches(options::OPT_muclibc);
+  return A && A->getOption().matches(options::OPT_nolibc);
 }
 
 bool mips::isNaN2008(const ArgList &Args, const llvm::Triple &Triple) {
diff --git a/clang/lib/Driver/Tools.h b/clang/lib/Driver/Tools.h
index b248caa..b7330af 100644
--- a/clang/lib/Driver/Tools.h
+++ b/clang/lib/Driver/Tools.h
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef CLANG_LIB_DRIVER_TOOLS_H_
-#define CLANG_LIB_DRIVER_TOOLS_H_
+#ifndef LLVM_CLANG_LIB_DRIVER_TOOLS_H
+#define LLVM_CLANG_LIB_DRIVER_TOOLS_H
 
 #include "clang/Driver/Tool.h"
 #include "clang/Driver/Types.h"
@@ -658,4 +658,4 @@
 } // end namespace driver
 } // end namespace clang
 
-#endif // CLANG_LIB_DRIVER_TOOLS_H_
+#endif