Recommit r359859 "[Attribute/Diagnostics] Print macro if definition is an attribute declaration"

Updated with fix for read of uninitialized memory.

llvm-svn: 360109
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index a6ff545..64af0fa 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -6200,6 +6200,16 @@
     return Context.getParenType(InnerType);
   }
 
+  case TYPE_MACRO_QUALIFIED: {
+    if (Record.size() != 2) {
+      Error("incorrect encoding of macro defined type");
+      return QualType();
+    }
+    QualType UnderlyingTy = readType(*Loc.F, Record, Idx);
+    IdentifierInfo *MacroII = GetIdentifierInfo(*Loc.F, Record, Idx);
+    return Context.getMacroQualifiedType(UnderlyingTy, MacroII);
+  }
+
   case TYPE_PACK_EXPANSION: {
     if (Record.size() != 2) {
       Error("incorrect encoding of pack expansion type");
@@ -6521,6 +6531,10 @@
   // nothing to do
 }
 
+void TypeLocReader::VisitMacroQualifiedTypeLoc(MacroQualifiedTypeLoc TL) {
+  TL.setExpansionLoc(ReadSourceLocation());
+}
+
 void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
   TL.setCaretLoc(ReadSourceLocation());
 }