[NFC] Rename clang::AttributeList to clang::ParsedAttr

Since The type no longer contains the 'next' item anymore, it isn't a list,
so rename it to ParsedAttr to be more accurate.

llvm-svn: 337005
diff --git a/clang/lib/Parse/Parser.cpp b/clang/lib/Parse/Parser.cpp
index 7bda21b..7a0b29c 100644
--- a/clang/lib/Parse/Parser.cpp
+++ b/clang/lib/Parse/Parser.cpp
@@ -1089,7 +1089,7 @@
   // Check to make sure that any normal attributes are allowed to be on
   // a definition.  Late parsed attributes are checked at the end.
   if (Tok.isNot(tok::equal)) {
-    for (const AttributeList &AL : D.getAttributes())
+    for (const ParsedAttr &AL : D.getAttributes())
       if (AL.isKnownToGCC() && !AL.isCXX11Attribute())
         Diag(AL.getLoc(), diag::warn_attribute_on_function_definition)
             << AL.getName();