Several improvements to template argument deduction:
  - Once we have deduced template arguments for a class template partial
    specialization, we use exactly those template arguments for instantiating
    the definition of the class template partial specialization.
  - Added template argument deduction for non-type template parameters.
  - Added template argument deduction for dependently-sized array types.

With these changes, we can now implement, e.g., the remove_reference
type trait. Also, Daniel's Ackermann template metaprogram now compiles
properly.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72909 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 3969da8..d8cc01e 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -2019,8 +2019,9 @@
                              const IdentifierInfo &II,
                              SourceRange Range);
 
-  bool DeduceTemplateArguments(ClassTemplatePartialSpecializationDecl *Partial,
-                               const TemplateArgumentList &TemplateArgs);
+  TemplateArgumentList *
+  DeduceTemplateArguments(ClassTemplatePartialSpecializationDecl *Partial,
+                          const TemplateArgumentList &TemplateArgs);
                              
   //===--------------------------------------------------------------------===//
   // C++ Template Instantiation
@@ -2227,7 +2228,7 @@
 
   QualType InstantiateType(QualType T, const TemplateArgumentList &TemplateArgs,
                            SourceLocation Loc, DeclarationName Entity);
-
+  
   OwningExprResult InstantiateExpr(Expr *E, 
                                    const TemplateArgumentList &TemplateArgs);