Key decisions about 'bool' vs '_Bool' to be based on a new flag in langoptions.

This is simple enough, but then I thought it would be nice to make PrintingPolicy
get a LangOptions so that various things can key off "bool" and "C++" independently.
This spiraled out of control.  There are many fixme's, but I think things are slightly
better than they were before.

One thing that can be improved: CFG should probably have an ASTContext pointer in it,
which would simplify its clients.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74493 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/RewriteObjC.cpp b/lib/Frontend/RewriteObjC.cpp
index dce2710..6c1c102 100644
--- a/lib/Frontend/RewriteObjC.cpp
+++ b/lib/Frontend/RewriteObjC.cpp
@@ -171,7 +171,7 @@
       // Get the new text.
       std::string SStr;
       llvm::raw_string_ostream S(SStr);
-      New->printPretty(S, *Context);
+      New->printPretty(S, *Context, 0, PrintingPolicy(LangOpts));
       const std::string &Str = S.str();
 
       // If replacement succeeded or warning disabled return with no warning.
@@ -1514,7 +1514,8 @@
                                                 SourceLocation());
   std::string syncExprBufS;
   llvm::raw_string_ostream syncExprBuf(syncExprBufS);
-  syncExpr->printPretty(syncExprBuf, *Context);
+  syncExpr->printPretty(syncExprBuf, *Context, 0,
+                        PrintingPolicy(LangOpts));
   buf += syncExprBuf.str();
   buf += ");\n";
   buf += "  if (_rethrow) objc_exception_throw(_rethrow);\n";
@@ -2143,7 +2144,8 @@
   // The pretty printer for StringLiteral handles escape characters properly.
   std::string prettyBufS;
   llvm::raw_string_ostream prettyBuf(prettyBufS);
-  Exp->getString()->printPretty(prettyBuf, *Context);
+  Exp->getString()->printPretty(prettyBuf, *Context, 0,
+                                PrintingPolicy(LangOpts));
   Preamble += prettyBuf.str();
   Preamble += ",";
   // The minus 2 removes the begin/end double quotes.