Keep track of the source locations for each protocol reference in
Objective-C classes, protocol definitions, forward protocol
declarations, and categories. This information isn't actually used
yet; that's coming next.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93636 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHWriterDecl.cpp b/lib/Frontend/PCHWriterDecl.cpp
index 2dbcc27..6f4cd8f 100644
--- a/lib/Frontend/PCHWriterDecl.cpp
+++ b/lib/Frontend/PCHWriterDecl.cpp
@@ -223,6 +223,10 @@
          PEnd = D->protocol_end();
        P != PEnd; ++P)
     Writer.AddDeclRef(*P, Record);
+  for (ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
+         PLEnd = D->protocol_loc_end();
+       PL != PLEnd; ++PL)
+    Writer.AddSourceLocation(*PL, Record);
   Record.push_back(D->ivar_size());
   for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(),
                                      IEnd = D->ivar_end(); I != IEnd; ++I)
@@ -251,6 +255,10 @@
   for (ObjCProtocolDecl::protocol_iterator
        I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
     Writer.AddDeclRef(*I, Record);
+  for (ObjCProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(),
+         PLEnd = D->protocol_loc_end();
+       PL != PLEnd; ++PL)
+    Writer.AddSourceLocation(*PL, Record);
   Code = pch::DECL_OBJC_PROTOCOL;
 }
 
@@ -272,9 +280,13 @@
 void PCHDeclWriter::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) {
   VisitDecl(D);
   Record.push_back(D->protocol_size());
-  for (ObjCProtocolDecl::protocol_iterator
+  for (ObjCForwardProtocolDecl::protocol_iterator
        I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
     Writer.AddDeclRef(*I, Record);
+  for (ObjCForwardProtocolDecl::protocol_loc_iterator 
+         PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
+       PL != PLEnd; ++PL)
+    Writer.AddSourceLocation(*PL, Record);
   Code = pch::DECL_OBJC_FORWARD_PROTOCOL;
 }
 
@@ -282,9 +294,13 @@
   VisitObjCContainerDecl(D);
   Writer.AddDeclRef(D->getClassInterface(), Record);
   Record.push_back(D->protocol_size());
-  for (ObjCProtocolDecl::protocol_iterator
+  for (ObjCCategoryDecl::protocol_iterator
        I = D->protocol_begin(), IEnd = D->protocol_end(); I != IEnd; ++I)
     Writer.AddDeclRef(*I, Record);
+  for (ObjCCategoryDecl::protocol_loc_iterator 
+         PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
+       PL != PLEnd; ++PL)
+    Writer.AddSourceLocation(*PL, Record);
   Writer.AddDeclRef(D->getNextClassCategory(), Record);
   Writer.AddSourceLocation(D->getLocEnd(), Record);
   Code = pch::DECL_OBJC_CATEGORY;