Abstract serialization fixes for the Apple Clang changes.

Author: rjmccall

clang/include/clang/AST/AbstractBasicReader.h

@@ -178,9 +178,9 @@ class DataStreamBasicReader : public BasicReaderBase<Impl> {
   }
 
   Qualifiers readQualifiers() {
-    static_assert(sizeof(Qualifiers().getAsOpaqueValue()) <= sizeof(uint32_t),
+    static_assert(sizeof(Qualifiers().getAsOpaqueValue()) <= sizeof(uint64_t),
                   "update this if the value size changes");
-    uint32_t value = asImpl().readUInt32();
+    uint64_t value = asImpl().readUInt64();
     return Qualifiers::fromOpaqueValue(value);
   }
 

clang/include/clang/AST/AbstractBasicWriter.h

@@ -164,9 +164,9 @@ class DataStreamBasicWriter : public BasicWriterBase<Impl> {
   }
 
   void writeQualifiers(Qualifiers value) {
-    static_assert(sizeof(value.getAsOpaqueValue()) <= sizeof(uint32_t),
+    static_assert(sizeof(value.getAsOpaqueValue()) <= sizeof(uint64_t),
                   "update this if the value size changes");
-    asImpl().writeUInt32(value.getAsOpaqueValue());
+    asImpl().writeUInt64(value.getAsOpaqueValue());
   }
 
   void writeExceptionSpecInfo(