switch the rest of the C decl classes to do their 
allocation through ASTContext.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48403 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index 4bd04e3..f4c271c 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -116,8 +116,8 @@
     RecordDecl *ObjectTag = 
       RecordDecl::Create(Context, Decl::Struct, SourceLocation(),
                          &IT.get("objc_object"), 0);
-    FieldDecl *IsaDecl = new FieldDecl(SourceLocation(), 0, 
-                                       Context.getObjCClassType());
+    FieldDecl *IsaDecl = FieldDecl::Create(Context, SourceLocation(), 0, 
+                                           Context.getObjCClassType());
     ObjectTag->defineBody(&IsaDecl, 1);
     QualType ObjT = Context.getPointerType(Context.getTagDeclType(ObjectTag));
     TypedefDecl *IdTypedef = TypedefDecl::Create(Context, SourceLocation(),