Simplify; NFC

Author: AaronBallman

clang/lib/AST/DeclBase.cpp

@@ -1422,7 +1422,7 @@ bool DeclContext::Encloses(const DeclContext *DC) const {
     return getPrimaryContext()->Encloses(DC);
 
   for (; DC; DC = DC->getParent())
-    if (!isa<LinkageSpecDecl>(DC) && !isa<ExportDecl>(DC) &&
+    if (!isa<LinkageSpecDecl, ExportDecl>(DC) &&
         DC->getPrimaryContext() == this)
       return true;
   return false;
@@ -1433,7 +1433,7 @@ bool DeclContext::LexicallyEncloses(const DeclContext *DC) const {
     return getPrimaryContext()->LexicallyEncloses(DC);
 
   for (; DC; DC = DC->getLexicalParent())
-    if (!isa<LinkageSpecDecl>(DC) && !isa<ExportDecl>(DC) &&
+    if (!isa<LinkageSpecDecl, ExportDecl>(DC) &&
         DC->getPrimaryContext() == this)
       return true;
   return false;