Build clang tools using CMake

tools/clang/empty_string/Makefile

Index: tools/clang/empty_string/Makefile
diff --git a/tools/clang/empty_string/Makefile b/tools/clang/empty_string/Makefile
deleted file mode 100644
index e07cf9fd347577f64c5446c8ee6103346561da78..0000000000000000000000000000000000000000
--- a/tools/clang/empty_string/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-#
-# This Makefile requires the LLVM build system. In order to build this tool,
-# please run tools/clang/scripts/build_tool.py.
-
-CLANG_LEVEL := ../..
-
-TOOLNAME = empty_string
-
-NO_INSTALL = 1
-
-include $(CLANG_LEVEL)/../../Makefile.config
-
-LINK_COMPONENTS := $(TARGETS_TO_BUILD) asmparser bitreader support mc option
-USEDLIBS = clangFrontend.a clangSerialization.a clangDriver.a \
-           clangTooling.a clangParse.a clangSema.a \
-           clangStaticAnalyzerFrontend.a clangStaticAnalyzerCheckers.a \
-           clangStaticAnalyzerCore.a clangAnalysis.a clangRewriteFrontend.a \
-           clangRewrite.a clangEdit.a clangAST.a clangLex.a clangBasic.a \
-           clangASTMatchers.a
-
-include $(CLANG_LEVEL)/Makefile
-