Fix method/variable name typos

llvm-svn: 196214
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index d61a8e9..d4a2e47 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -948,7 +948,7 @@
 
 /// \brief Check that the file referenced by Value exists. If it doesn't,
 /// issue a diagnostic and return false.
-static bool DiagnoseInputExistance(const Driver &D, const DerivedArgList &Args,
+static bool DiagnoseInputExistence(const Driver &D, const DerivedArgList &Args,
                                    StringRef Value) {
   if (!D.getCheckInputsExist())
     return true;
@@ -1075,19 +1075,19 @@
         Ty = InputType;
       }
 
-      if (DiagnoseInputExistance(*this, Args, Value))
+      if (DiagnoseInputExistence(*this, Args, Value))
         Inputs.push_back(std::make_pair(Ty, A));
 
     } else if (A->getOption().matches(options::OPT__SLASH_Tc)) {
       StringRef Value = A->getValue();
-      if (DiagnoseInputExistance(*this, Args, Value)) {
+      if (DiagnoseInputExistence(*this, Args, Value)) {
         Arg *InputArg = MakeInputArg(Args, Opts, A->getValue());
         Inputs.push_back(std::make_pair(types::TY_C, InputArg));
       }
       A->claim();
     } else if (A->getOption().matches(options::OPT__SLASH_Tp)) {
       StringRef Value = A->getValue();
-      if (DiagnoseInputExistance(*this, Args, Value)) {
+      if (DiagnoseInputExistence(*this, Args, Value)) {
         Arg *InputArg = MakeInputArg(Args, Opts, A->getValue());
         Inputs.push_back(std::make_pair(types::TY_CXX, InputArg));
       }