[AST] Pack the unsigned of DependentTemplateSpecializationType into Type

The bit-fields of `Type` have enough space for the member
`unsigned NumArgs` of `DependentTemplateSpecializationType`.

Reviewed By: erichkeane

Differential Revision: https://reviews.llvm.org/D50712

llvm-svn: 339860

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/AST/Type.cpp b/clang/lib/AST/Type.cpp
index 1dba3e3e4c7..bd1ac3c5aaf 100644
--- a/clang/lib/AST/Type.cpp
+++ b/clang/lib/AST/Type.cpp
@@ -2604,7 +2604,8 @@ DependentTemplateSpecializationType::DependentTemplateSpecializationType(
   : TypeWithKeyword(Keyword, DependentTemplateSpecialization, Canon, true, true,
                     /*VariablyModified=*/false,
                     NNS && NNS->containsUnexpandedParameterPack()),
-    NNS(NNS), Name(Name), NumArgs(Args.size()) {
+    NNS(NNS), Name(Name) {
+  DependentTemplateSpecializationTypeBits.NumArgs = Args.size();
   assert((!NNS || NNS->isDependent()) &&
          "DependentTemplateSpecializatonType requires dependent qualifier");
   TemplateArgument *ArgBuffer = getArgBuffer();