diff --git a/clang/include/clang/Tooling/Syntax/Nodes.h b/clang/include/clang/Tooling/Syntax/Nodes.h
--- a/clang/include/clang/Tooling/Syntax/Nodes.h
+++ b/clang/include/clang/Tooling/Syntax/Nodes.h
@@ -64,6 +64,8 @@
   StaticAssertDeclaration,
   LinkageSpecificationDeclaration,
   SimpleDeclaration,
+  TemplateDeclaration,
+  ExplicitTemplateInstantiation,
   NamespaceDefinition,
   NamespaceAliasDefinition,
   UsingNamespaceDirective,
@@ -112,6 +114,9 @@
   StaticAssertDeclaration_condition,
   StaticAssertDeclaration_message,
   SimpleDeclaration_declarator,
+  TemplateDeclaration_declaration,
+  ExplicitTemplateInstantiation_externKeyword,
+  ExplicitTemplateInstantiation_declaration,
   ArraySubscript_sizeExpression,
   TrailingReturnType_arrow,
   TrailingReturnType_declarator,
@@ -396,6 +401,34 @@
   std::vector<syntax::SimpleDeclarator *> declarators();
 };
 
+/// template <template-parameters> <declaration>
+class TemplateDeclaration final : public Declaration {
+public:
+  TemplateDeclaration() : Declaration(NodeKind::TemplateDeclaration) {}
+  static bool classof(const Node *N) {
+    return N->kind() == NodeKind::TemplateDeclaration;
+  }
+  syntax::Leaf *templateKeyword();
+  syntax::Declaration *declaration();
+};
+
+/// template <declaration>
+/// Examples:
+///     template struct X<int>
+///     template void foo<int>()
+///     template int var<double>
+class ExplicitTemplateInstantiation final : public Declaration {
+public:
+  ExplicitTemplateInstantiation()
+      : Declaration(NodeKind::ExplicitTemplateInstantiation) {}
+  static bool classof(const Node *N) {
+    return N->kind() == NodeKind::ExplicitTemplateInstantiation;
+  }
+  syntax::Leaf *templateKeyword();
+  syntax::Leaf *externKeyword();
+  syntax::Declaration *declaration();
+};
+
 /// namespace <name> { <decls> }
 class NamespaceDefinition final : public Declaration {
 public:
diff --git a/clang/lib/Tooling/Syntax/BuildTree.cpp b/clang/lib/Tooling/Syntax/BuildTree.cpp
--- a/clang/lib/Tooling/Syntax/BuildTree.cpp
+++ b/clang/lib/Tooling/Syntax/BuildTree.cpp
@@ -18,6 +18,7 @@
 #include "clang/Basic/LLVM.h"
 #include "clang/Basic/SourceLocation.h"
 #include "clang/Basic/SourceManager.h"
+#include "clang/Basic/Specifiers.h"
 #include "clang/Basic/TokenKinds.h"
 #include "clang/Lex/Lexer.h"
 #include "clang/Tooling/Syntax/Nodes.h"
@@ -176,7 +177,6 @@
   /// Should be called for expressions in non-statement position to avoid
   /// wrapping into expression statement.
   void markExprChild(Expr *Child, NodeRole Role);
-
   /// Set role for a token starting at \p Loc.
   void markChildToken(SourceLocation Loc, NodeRole R);
   /// Set role for \p T.
@@ -186,6 +186,9 @@
   void markChild(llvm::ArrayRef<syntax::Token> Range, NodeRole R);
   /// Set role for the delayed node that spans exactly \p Range.
   void markDelayedChild(llvm::ArrayRef<syntax::Token> Range, NodeRole R);
+  // Set role for the node that may or may not be delayed. Node must span
+  // exactly \p Range.
+  void markMaybeDelayedChild(llvm::ArrayRef<syntax::Token> Range, NodeRole R);
 
   /// Finish building the tree and consume the root node.
   syntax::TranslationUnit *finalize() && {
@@ -202,6 +205,9 @@
     return TU;
   }
 
+  /// Finds a token starting at \p L. The token must exist if \p L is valid.
+  const syntax::Token *findToken(SourceLocation L) const;
+
   /// getRange() finds the syntax tokens corresponding to the passed source
   /// locations.
   /// \p First is the start position of the first token and \p Last is the start
@@ -214,15 +220,22 @@
            Arena.sourceManager().isBeforeInTranslationUnit(First, Last));
     return llvm::makeArrayRef(findToken(First), std::next(findToken(Last)));
   }
-  llvm::ArrayRef<syntax::Token> getRange(const Decl *D) const {
-    auto Tokens = getRange(D->getBeginLoc(), D->getEndLoc());
-    if (llvm::isa<NamespaceDecl>(D))
-      return Tokens;
-    if (DeclsWithoutSemicolons.count(D))
-      return Tokens;
-    // FIXME: do not consume trailing semicolon on function definitions.
-    // Most declarations own a semicolon in syntax trees, but not in clang AST.
-    return withTrailingSemicolon(Tokens);
+
+  llvm::ArrayRef<syntax::Token>
+  getTemplateRange(const ClassTemplateSpecializationDecl *D) const {
+    auto R = D->getSourceRange();
+    auto Tokens = getRange(R.getBegin(), R.getEnd());
+    return maybeAppendSemicolon(Tokens, D);
+  }
+
+  llvm::ArrayRef<syntax::Token> getDeclRange(const Decl *D) const {
+    llvm::ArrayRef<clang::syntax::Token> Tokens;
+    // We want to drop the template parameters for specializations.
+    if (auto *S = llvm::dyn_cast<TagDecl>(D))
+      Tokens = getRange(S->TypeDecl::getBeginLoc(), S->getEndLoc());
+    else
+      Tokens = getRange(D->getBeginLoc(), D->getEndLoc());
+    return maybeAppendSemicolon(Tokens, D);
   }
   llvm::ArrayRef<syntax::Token> getExprRange(const Expr *E) const {
     return getRange(E->getBeginLoc(), E->getEndLoc());
@@ -242,6 +255,18 @@
   }
 
 private:
+  llvm::ArrayRef<syntax::Token>
+  maybeAppendSemicolon(llvm::ArrayRef<syntax::Token> Tokens,
+                       const Decl *D) const {
+    if (llvm::isa<NamespaceDecl>(D))
+      return Tokens;
+    if (DeclsWithoutSemicolons.count(D))
+      return Tokens;
+    // FIXME: do not consume trailing semicolon on function definitions.
+    // Most declarations own a semicolon in syntax trees, but not in clang AST.
+    return withTrailingSemicolon(Tokens);
+  }
+
   llvm::ArrayRef<syntax::Token>
   withTrailingSemicolon(llvm::ArrayRef<syntax::Token> Tokens) const {
     assert(!Tokens.empty());
@@ -252,9 +277,6 @@
     return Tokens;
   }
 
-  /// Finds a token starting at \p L. The token must exist.
-  const syntax::Token *findToken(SourceLocation L) const;
-
   /// A collection of trees covering the input tokens.
   /// When created, each tree corresponds to a single token in the file.
   /// Clients call 'foldChildren' to attach one or more subtrees to a parent
@@ -285,6 +307,15 @@
       It->second.Role = Role;
     }
 
+    void assignRoleMaybeDelayed(llvm::ArrayRef<syntax::Token> Range,
+                                syntax::NodeRole Role) {
+      auto It = DelayedFolds.find(Range.begin());
+      if (It == DelayedFolds.end())
+        return assignRole(Range, Role);
+      assert(It->second.End == Range.end());
+      It->second.Role = Role;
+    }
+
     void assignRole(llvm::ArrayRef<syntax::Token> Range,
                     syntax::NodeRole Role) {
       assert(!Range.empty());
@@ -447,7 +478,7 @@
 
   bool WalkUpFromDeclaratorDecl(DeclaratorDecl *DD) {
     // Ensure declarators are covered by SimpleDeclaration.
-    Builder.noticeDeclRange(Builder.getRange(DD));
+    Builder.noticeDeclRange(Builder.getDeclRange(DD));
 
     // Build the declarator node.
     SourceRange Initializer;
@@ -472,7 +503,7 @@
 
   bool WalkUpFromTypedefNameDecl(TypedefNameDecl *D) {
     // Ensure declarators are covered by SimpleDeclaration.
-    Builder.noticeDeclRange(Builder.getRange(D));
+    Builder.noticeDeclRange(Builder.getDeclRange(D));
 
     auto R = getDeclaratorRange(
         Builder.sourceManager(), D->getTypeSourceInfo()->getTypeLoc(),
@@ -487,19 +518,59 @@
 
   bool VisitDecl(Decl *D) {
     assert(!D->isImplicit());
-    Builder.foldNode(Builder.getRange(D),
+    Builder.foldNode(Builder.getDeclRange(D),
                      new (allocator()) syntax::UnknownDeclaration());
     return true;
   }
 
+  // RAV does not call WalkUpFrom* on explicit instantiations, so we have to
+  // override Traverse.
+  // FIXME: make RAV call WalkUpFrom* instead.
+  bool
+  TraverseClassTemplateSpecializationDecl(ClassTemplateSpecializationDecl *C) {
+    if (!RecursiveASTVisitor::TraverseClassTemplateSpecializationDecl(C))
+      return false;
+    if (C->isExplicitSpecialization())
+      return true; // we are only interested in explicit instantiations.
+    if (!WalkUpFromClassTemplateSpecializationDecl(C))
+      return false;
+    foldExplicitTemplateInstantiation(
+        Builder.getTemplateRange(C), Builder.findToken(C->getExternLoc()),
+        Builder.findToken(C->getTemplateKeywordLoc()), Builder.getDeclRange(C));
+    return true;
+  }
+
+  bool WalkUpFromTemplateDecl(TemplateDecl *S) {
+    foldTemplateDeclaration(
+        Builder.getDeclRange(S),
+        Builder.findToken(S->getTemplateParameters()->getTemplateLoc()),
+        Builder.getDeclRange(S->getTemplatedDecl()));
+    return true;
+  }
+
   bool WalkUpFromTagDecl(TagDecl *C) {
     // FIXME: build the ClassSpecifier node.
-    if (C->isFreeStanding()) {
-      // Class is a declaration specifier and needs a spanning declaration node.
-      Builder.foldNode(Builder.getRange(C),
-                       new (allocator()) syntax::SimpleDeclaration);
+    if (!C->isFreeStanding()) {
+      assert(C->getNumTemplateParameterLists() == 0);
       return true;
     }
+    // Class is a declaration specifier and needs a spanning declaration node.
+    auto DeclarationRange = Builder.getDeclRange(C);
+    Builder.foldNode(DeclarationRange,
+                     new (allocator()) syntax::SimpleDeclaration);
+
+    // Build TemplateDeclaration nodes if we had template parameters.
+    auto ConsumeTemplateParameters = [&](const TemplateParameterList &L) {
+      auto *TemplateKW = Builder.findToken(L.getTemplateLoc());
+      auto R = llvm::makeArrayRef(TemplateKW, DeclarationRange.end());
+      foldTemplateDeclaration(R, TemplateKW, DeclarationRange);
+
+      DeclarationRange = R;
+    };
+    if (auto *S = llvm::dyn_cast<ClassTemplatePartialSpecializationDecl>(C))
+      ConsumeTemplateParameters(*S->getTemplateParameters());
+    for (unsigned I = C->getNumTemplateParameterLists(); 0 < I; --I)
+      ConsumeTemplateParameters(*C->getTemplateParameterList(I - 1));
     return true;
   }
 
@@ -568,7 +639,7 @@
   }
 
   bool WalkUpFromNamespaceDecl(NamespaceDecl *S) {
-    auto Tokens = Builder.getRange(S);
+    auto Tokens = Builder.getDeclRange(S);
     if (Tokens.front().kind() == tok::coloncolon) {
       // Handle nested namespace definitions. Those start at '::' token, e.g.
       // namespace a^::b {}
@@ -609,7 +680,7 @@
     Builder.markChildToken(L.getLParenLoc(), syntax::NodeRole::OpenParen);
     for (auto *P : L.getParams())
       Builder.markDelayedChild(
-          Builder.getRange(P),
+          Builder.getDeclRange(P),
           syntax::NodeRole::ParametersAndQualifiers_parameter);
     Builder.markChildToken(L.getRParenLoc(), syntax::NodeRole::CloseParen);
     Builder.foldNode(Builder.getRange(L.getLParenLoc(), L.getEndLoc()),
@@ -743,7 +814,7 @@
   }
 
   bool WalkUpFromEmptyDecl(EmptyDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::EmptyDeclaration);
     return true;
   }
@@ -753,49 +824,49 @@
                           syntax::NodeRole::StaticAssertDeclaration_condition);
     Builder.markExprChild(S->getMessage(),
                           syntax::NodeRole::StaticAssertDeclaration_message);
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::StaticAssertDeclaration);
     return true;
   }
 
   bool WalkUpFromLinkageSpecDecl(LinkageSpecDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::LinkageSpecificationDeclaration);
     return true;
   }
 
   bool WalkUpFromNamespaceAliasDecl(NamespaceAliasDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::NamespaceAliasDefinition);
     return true;
   }
 
   bool WalkUpFromUsingDirectiveDecl(UsingDirectiveDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::UsingNamespaceDirective);
     return true;
   }
 
   bool WalkUpFromUsingDecl(UsingDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::UsingDeclaration);
     return true;
   }
 
   bool WalkUpFromUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::UsingDeclaration);
     return true;
   }
 
   bool WalkUpFromUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::UsingDeclaration);
     return true;
   }
 
   bool WalkUpFromTypeAliasDecl(TypeAliasDecl *S) {
-    Builder.foldNode(Builder.getRange(S),
+    Builder.foldNode(Builder.getDeclRange(S),
                      new (allocator()) syntax::TypeAliasDeclaration);
     return true;
   }
@@ -832,6 +903,36 @@
     Builder.foldNode(Tokens, new (allocator()) syntax::TrailingReturnType);
     return Tokens;
   }
+
+  void
+  foldExplicitTemplateInstantiation(ArrayRef<syntax::Token> Range,
+                                    const syntax::Token *ExternKW,
+                                    const syntax::Token *TemplateKW,
+                                    ArrayRef<syntax::Token> InnerDeclaration) {
+    assert(!ExternKW || ExternKW->kind() == tok::kw_extern);
+    assert(TemplateKW && TemplateKW->kind() == tok::kw_template);
+    Builder.markChildToken(
+        ExternKW,
+        syntax::NodeRole::ExplicitTemplateInstantiation_externKeyword);
+    Builder.markChildToken(TemplateKW, syntax::NodeRole::IntroducerKeyword);
+    Builder.markChild(
+        InnerDeclaration,
+        syntax::NodeRole::ExplicitTemplateInstantiation_declaration);
+    Builder.foldNode(Range,
+                     new (allocator()) syntax::ExplicitTemplateInstantiation);
+  }
+
+  void foldTemplateDeclaration(ArrayRef<syntax::Token> Range,
+                               const syntax::Token *TemplateKW,
+                               ArrayRef<syntax::Token> TemplatedDeclaration) {
+    assert(TemplateKW && TemplateKW->kind() == tok::kw_template);
+    Builder.markChildToken(TemplateKW, syntax::NodeRole::IntroducerKeyword);
+    Builder.markMaybeDelayedChild(
+        TemplatedDeclaration,
+        syntax::NodeRole::TemplateDeclaration_declaration);
+    Builder.foldNode(Range, new (allocator()) syntax::TemplateDeclaration);
+  }
+
   /// A small helper to save some typing.
   llvm::BumpPtrAllocator &allocator() { return Builder.allocator(); }
 
@@ -878,6 +979,11 @@
   Pending.assignRoleDelayed(Range, R);
 }
 
+void syntax::TreeBuilder::markMaybeDelayedChild(
+    llvm::ArrayRef<syntax::Token> Range, NodeRole R) {
+  Pending.assignRoleMaybeDelayed(Range, R);
+}
+
 void syntax::TreeBuilder::markStmtChild(Stmt *Child, NodeRole Role) {
   if (!Child)
     return;
@@ -903,6 +1009,8 @@
 }
 
 const syntax::Token *syntax::TreeBuilder::findToken(SourceLocation L) const {
+  if (L.isInvalid())
+    return nullptr;
   auto It = LocationToToken.find(L.getRawEncoding());
   assert(It != LocationToToken.end());
   return It->second;
diff --git a/clang/lib/Tooling/Syntax/Nodes.cpp b/clang/lib/Tooling/Syntax/Nodes.cpp
--- a/clang/lib/Tooling/Syntax/Nodes.cpp
+++ b/clang/lib/Tooling/Syntax/Nodes.cpp
@@ -58,6 +58,10 @@
     return OS << "LinkageSpecificationDeclaration";
   case NodeKind::SimpleDeclaration:
     return OS << "SimpleDeclaration";
+  case NodeKind::TemplateDeclaration:
+    return OS << "TemplateDeclaration";
+  case NodeKind::ExplicitTemplateInstantiation:
+    return OS << "ExplicitTemplateInstantiation";
   case NodeKind::NamespaceDefinition:
     return OS << "NamespaceDefinition";
   case NodeKind::NamespaceAliasDefinition:
@@ -118,6 +122,12 @@
     return OS << "StaticAssertDeclaration_message";
   case syntax::NodeRole::SimpleDeclaration_declarator:
     return OS << "SimpleDeclaration_declarator";
+  case syntax::NodeRole::TemplateDeclaration_declaration:
+    return OS << "TemplateDeclaration_declaration";
+  case syntax::NodeRole::ExplicitTemplateInstantiation_externKeyword:
+    return OS << "ExplicitTemplateInstantiation_externKeyword";
+  case syntax::NodeRole::ExplicitTemplateInstantiation_declaration:
+    return OS << "ExplicitTemplateInstantiation_declaration";
   case syntax::NodeRole::ArraySubscript_sizeExpression:
     return OS << "ArraySubscript_sizeExpression";
   case syntax::NodeRole::TrailingReturnType_arrow:
@@ -281,6 +291,31 @@
   return Children;
 }
 
+syntax::Leaf *syntax::TemplateDeclaration::templateKeyword() {
+  return llvm::cast_or_null<syntax::Leaf>(
+      findChild(syntax::NodeRole::IntroducerKeyword));
+}
+
+syntax::Declaration *syntax::TemplateDeclaration::declaration() {
+  return llvm::cast_or_null<syntax::Declaration>(
+      findChild(syntax::NodeRole::TemplateDeclaration_declaration));
+}
+
+syntax::Leaf *syntax::ExplicitTemplateInstantiation::templateKeyword() {
+  return llvm::cast_or_null<syntax::Leaf>(
+      findChild(syntax::NodeRole::IntroducerKeyword));
+}
+
+syntax::Leaf *syntax::ExplicitTemplateInstantiation::externKeyword() {
+  return llvm::cast_or_null<syntax::Leaf>(
+      findChild(syntax::NodeRole::ExplicitTemplateInstantiation_externKeyword));
+}
+
+syntax::Declaration *syntax::ExplicitTemplateInstantiation::declaration() {
+  return llvm::cast_or_null<syntax::Declaration>(
+      findChild(syntax::NodeRole::ExplicitTemplateInstantiation_declaration));
+}
+
 syntax::Leaf *syntax::ParenDeclarator::lparen() {
   return llvm::cast_or_null<syntax::Leaf>(
       findChild(syntax::NodeRole::OpenParen));
diff --git a/clang/unittests/Tooling/Syntax/TreeTest.cpp b/clang/unittests/Tooling/Syntax/TreeTest.cpp
--- a/clang/unittests/Tooling/Syntax/TreeTest.cpp
+++ b/clang/unittests/Tooling/Syntax/TreeTest.cpp
@@ -678,6 +678,212 @@
   `-;
 )txt"},
       {R"cpp(
+template <class T> struct cls {};
+template <class T> int var = 10;
+template <class T> int fun() {}
+    )cpp",
+       R"txt(
+*: TranslationUnit
+|-TemplateDeclaration
+| |-template
+| |-<
+| |-UnknownDeclaration
+| | |-class
+| | `-T
+| |->
+| `-SimpleDeclaration
+|   |-struct
+|   |-cls
+|   |-{
+|   |-}
+|   `-;
+|-TemplateDeclaration
+| |-template
+| |-<
+| |-UnknownDeclaration
+| | |-class
+| | `-T
+| |->
+| `-SimpleDeclaration
+|   |-int
+|   |-SimpleDeclarator
+|   | |-var
+|   | |-=
+|   | `-UnknownExpression
+|   |   `-10
+|   `-;
+`-TemplateDeclaration
+  |-template
+  |-<
+  |-UnknownDeclaration
+  | |-class
+  | `-T
+  |->
+  `-SimpleDeclaration
+    |-int
+    |-SimpleDeclarator
+    | |-fun
+    | `-ParametersAndQualifiers
+    |   |-(
+    |   `-)
+    `-CompoundStatement
+      |-{
+      `-}
+)txt"},
+      {R"cpp(
+template <class T>
+struct X {
+  template <class U>
+  U foo();
+};
+    )cpp",
+       R"txt(
+*: TranslationUnit
+`-TemplateDeclaration
+  |-template
+  |-<
+  |-UnknownDeclaration
+  | |-class
+  | `-T
+  |->
+  `-SimpleDeclaration
+    |-struct
+    |-X
+    |-{
+    |-TemplateDeclaration
+    | |-template
+    | |-<
+    | |-UnknownDeclaration
+    | | |-class
+    | | `-U
+    | |->
+    | `-SimpleDeclaration
+    |   |-U
+    |   |-SimpleDeclarator
+    |   | |-foo
+    |   | `-ParametersAndQualifiers
+    |   |   |-(
+    |   |   `-)
+    |   `-;
+    |-}
+    `-;
+)txt"},
+      {R"cpp(
+template <class T> struct X {};
+template <class T> struct X<T*> {};
+template <> struct X<int> {};
+
+template struct X<double>;
+extern template struct X<float>;
+)cpp",
+       R"txt(
+*: TranslationUnit
+|-TemplateDeclaration
+| |-template
+| |-<
+| |-UnknownDeclaration
+| | |-class
+| | `-T
+| |->
+| `-SimpleDeclaration
+|   |-struct
+|   |-X
+|   |-{
+|   |-}
+|   `-;
+|-TemplateDeclaration
+| |-template
+| |-<
+| |-UnknownDeclaration
+| | |-class
+| | `-T
+| |->
+| `-SimpleDeclaration
+|   |-struct
+|   |-X
+|   |-<
+|   |-T
+|   |-*
+|   |->
+|   |-{
+|   |-}
+|   `-;
+|-TemplateDeclaration
+| |-template
+| |-<
+| |->
+| `-SimpleDeclaration
+|   |-struct
+|   |-X
+|   |-<
+|   |-int
+|   |->
+|   |-{
+|   |-}
+|   `-;
+|-ExplicitTemplateInstantiation
+| |-template
+| `-SimpleDeclaration
+|   |-struct
+|   |-X
+|   |-<
+|   |-double
+|   |->
+|   `-;
+`-ExplicitTemplateInstantiation
+  |-extern
+  |-template
+  `-SimpleDeclaration
+    |-struct
+    |-X
+    |-<
+    |-float
+    |->
+    `-;
+)txt"},
+      {R"cpp(
+template <class T> struct X { struct Y; };
+template <class T> struct X<T>::Y {};
+    )cpp",
+       R"txt(
+*: TranslationUnit
+|-TemplateDeclaration
+| |-template
+| |-<
+| |-UnknownDeclaration
+| | |-class
+| | `-T
+| |->
+| `-SimpleDeclaration
+|   |-struct
+|   |-X
+|   |-{
+|   |-SimpleDeclaration
+|   | |-struct
+|   | |-Y
+|   | `-;
+|   |-}
+|   `-;
+`-TemplateDeclaration
+  |-template
+  |-<
+  |-UnknownDeclaration
+  | |-class
+  | `-T
+  |->
+  `-SimpleDeclaration
+    |-struct
+    |-X
+    |-<
+    |-T
+    |->
+    |-::
+    |-Y
+    |-{
+    |-}
+    `-;
+       )txt"},
+      {R"cpp(
 namespace ns {}
 using namespace ::ns;
     )cpp",
@@ -726,7 +932,7 @@
     )cpp",
        R"txt(
 *: TranslationUnit
-`-UnknownDeclaration
+`-TemplateDeclaration
   |-template
   |-<
   |-UnknownDeclaration