properly escape filenames when generating implicit #includes, this handles
things like " in paths etc.  Found by inspection.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68632 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/clang-cc/clang-cc.cpp b/tools/clang-cc/clang-cc.cpp
index d5c44cd..ee90147 100644
--- a/tools/clang-cc/clang-cc.cpp
+++ b/tools/clang-cc/clang-cc.cpp
@@ -1011,7 +1011,10 @@
 static void AddImplicitInclude(std::vector<char> &Buf, const std::string &File){
   const char *Inc = "#include \"";
   Buf.insert(Buf.end(), Inc, Inc+strlen(Inc));
-  Buf.insert(Buf.end(), File.begin(), File.end());
+  
+  // Escape double quotes etc.
+  std::string EscapedFile = Lexer::Stringify(File);
+  Buf.insert(Buf.end(), EscapedFile.begin(), EscapedFile.end());
   Buf.push_back('"');
   Buf.push_back('\n');
 }
@@ -1020,7 +1023,10 @@
                                      const std::string &File) {
   const char *Inc = "#__include_macros \"";
   Buf.insert(Buf.end(), Inc, Inc+strlen(Inc));
-  Buf.insert(Buf.end(), File.begin(), File.end());
+
+  // Escape double quotes etc.
+  std::string EscapedFile = Lexer::Stringify(File);
+  Buf.insert(Buf.end(), EscapedFile.begin(), EscapedFile.end());
   Buf.push_back('"');
   Buf.push_back('\n');
 }