Reuse pointer

Author: David Ungar

lib/AST/ASTScopeLookup.cpp

@@ -58,7 +58,7 @@ const ASTScopeImpl *ASTScopeImpl::findStartingScopeForLookup(
 
   auto *const fileScope = sourceFile->getScope().impl;
   // Parser may have added decls to source file, since previous lookup
-  sourceFile->getScope().impl->addNewDeclsToScopeTree();
+  fileScope->addNewDeclsToScopeTree();
   if (name.isOperator())
     return fileScope; // operators always at file scope