Better solution:  calculate the visibility of functions and variables
independently of whether they're definitions, then teach IR generation to
ignore non-explicit visibility when emitting declarations.  Use this to
make sure that RTTI, vtables, and VTTs get the right visibility.

More of rdar://problem/8613093



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117781 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 683f175..681ab0a 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -259,12 +259,13 @@
 
   /// setGlobalVisibility - Set the visibility for the given LLVM
   /// GlobalValue.
-  void setGlobalVisibility(llvm::GlobalValue *GV, const NamedDecl *D) const;
+  void setGlobalVisibility(llvm::GlobalValue *GV, const NamedDecl *D,
+                           bool IsForDefinition) const;
 
   /// setTypeVisibility - Set the visibility for the given global
   /// value which holds information about a type.
   void setTypeVisibility(llvm::GlobalValue *GV, const CXXRecordDecl *D,
-                         bool IsForRTTI) const;
+                         bool IsForRTTI, bool IsForDefinition) const;
 
   llvm::Constant *GetAddrOfGlobal(GlobalDecl GD) {
     if (isa<CXXConstructorDecl>(GD.getDecl()))