Revert rL365355 : [Syntax] Introduce syntax trees

Summary:
A tooling-focused alternative to the AST. This commit focuses on the
memory-management strategy and the structure of the AST.

More to follow later:
  - Operations to mutate the syntax trees and corresponding textual
    replacements.
  - Mapping between clang AST nodes and syntax tree nodes.
  - More node types corresponding to the language constructs.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: llvm-commits, mgorny, cfe-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D61637
........
Fixes buildbots which were crashing on SyntaxTests.exe

llvm-svn: 365465

1 files changed, 0 insertions, 33 deletions

diff --git a/clang/lib/Tooling/Syntax/Nodes.cpp b/clang/lib/Tooling/Syntax/Nodes.cpp
deleted file mode 100644
index 5dd793ccc2d..00000000000
--- a/clang/lib/Tooling/Syntax/Nodes.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-//===- Nodes.cpp ----------------------------------------------*- C++ -*-=====//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-#include "clang/Tooling/Syntax/Nodes.h"
-#include "clang/Basic/TokenKinds.h"
-
-using namespace clang;
-
-llvm::raw_ostream &syntax::operator<<(llvm::raw_ostream &OS, NodeKind K) {
-  switch (K) {
-  case NodeKind::Leaf:
-    return OS << "Leaf";
-  case NodeKind::TranslationUnit:
-    return OS << "TranslationUnit";
-  case NodeKind::TopLevelDeclaration:
-    return OS << "TopLevelDeclaration";
-  case NodeKind::CompoundStatement:
-    return OS << "CompoundStatement";
-  }
-  llvm_unreachable("unknown node kind");
-}
-
-syntax::Leaf *syntax::CompoundStatement::lbrace() {
-  return llvm::cast_or_null<syntax::Leaf>(findChild(Roles::lbrace));
-}
-
-syntax::Leaf *syntax::CompoundStatement::rbrace() {
-  return llvm::cast_or_null<syntax::Leaf>(findChild(Roles::rbrace));
-}