[-fms-extensions] Don't crash on explicit class-scope specializations & default arguments

The code had a typo it was doing:
  Param->setUninstantiatedDefaultArg(Param->getUninstantiatedDefaultArg());

This is a no-op but may assert, we wanted to do:
  Param->setUninstantiatedDefaultArg(OldParam->getUninstantiatedDefaultArg());

This fixes PR28082.

llvm-svn: 272425

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Parse/ParseCXXInlineMethods.cpp b/clang/lib/Parse/ParseCXXInlineMethods.cpp
index 3db75c7..3c51342 100644
--- a/clang/lib/Parse/ParseCXXInlineMethods.cpp
+++ b/clang/lib/Parse/ParseCXXInlineMethods.cpp
@@ -381,7 +381,7 @@ void Parser::ParseLexedMethodDeclaration(LateParsedMethodDeclaration &LM) {
       assert (!OldParam->hasUnparsedDefaultArg());
       if (OldParam->hasUninstantiatedDefaultArg())
         Param->setUninstantiatedDefaultArg(
-                                      Param->getUninstantiatedDefaultArg());
+            OldParam->getUninstantiatedDefaultArg());
       else
         Param->setDefaultArg(OldParam->getInit());
     }