Fix the template instantiation of ExtParameterInfos; tests to follow.

llvm-svn: 262289
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 829d51e..fdf1c73 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -3124,9 +3124,10 @@
     // In this case, we'll just go instantiate the ParmVarDecls that we
     // synthesized in the method declaration.
     SmallVector<QualType, 4> ParamTypes;
+    Sema::ExtParameterInfoBuilder ExtParamInfos;
     if (SemaRef.SubstParmTypes(D->getLocation(), D->param_begin(),
-                               D->getNumParams(), TemplateArgs, ParamTypes,
-                               &Params))
+                               D->getNumParams(), nullptr, TemplateArgs,
+                               ParamTypes, &Params, ExtParamInfos))
       return nullptr;
   }