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/AST/NestedNameSpecifier.cpp b/lib/AST/NestedNameSpecifier.cpp
index 09522a2..90ec4d3 100644
--- a/lib/AST/NestedNameSpecifier.cpp
+++ b/lib/AST/NestedNameSpecifier.cpp
@@ -153,8 +153,6 @@
   Context.Deallocate((void *)this);
 }
 
-void NestedNameSpecifier::dump() {
-  PrintingPolicy Policy;
-  Policy.CPlusPlus = true;
-  print(llvm::errs(), Policy);
+void NestedNameSpecifier::dump(const LangOptions &LO) {
+  print(llvm::errs(), PrintingPolicy(LO));
 }