Roll Clang 214024:216630 (+216684) and switch to CMake (try 2)

tools/clang/blink_gc_plugin/tests/test.sh

 #!/bin/bash
 #
 # Copyright 2014 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.
 #
 # Hacky, primitive testing: This runs the style plugin for a set of input files
 # and compares the output with golden result files.
 
 E_BADARGS=65
 E_FAILEDTEST=1
 
 failed_any_test=
 
 # Prints usage information.
 usage() {
   echo "Usage: $(basename "${0}")" \
-    "<Path to the llvm build dir, usually Release+Asserts>"
+    "<path to clang>" \
+    "<path to plugin>"
   echo ""
   echo "  Runs all the libBlinkGCPlugin unit tests"
   echo ""
 }
 
 # Runs a single test case.
 do_testcase() {
   local flags=""
   if [ -e "${3}" ]; then
     flags="$(cat "${3}")"
   fi
-  local output="$("${CLANG_DIR}"/bin/clang -c -Wno-c++11-extensions \
-      -Xclang -load -Xclang "${CLANG_DIR}"/lib/lib${LIBNAME}.${LIB} \
+  local output="$("${CLANG_PATH}" -c -Wno-c++11-extensions \
+      -Xclang -load -Xclang "${PLUGIN_PATH}" \
       -Xclang -add-plugin -Xclang blink-gc-plugin ${flags} ${1} 2>&1)"
   local json="${input%cpp}graph.json"
   if [ -f "$json" ]; then
     output="$(python ../process-graph.py -c ${json} 2>&1)"
   fi
   local diffout="$(echo "${output}" | diff - "${2}")"
   if [ "${diffout}" = "" ]; then
     echo "PASS: ${1}"
   else
     failed_any_test=yes
     echo "FAIL: ${1}"
     echo "Output of compiler:"
     echo "${output}"
     echo "Expected output:"
     cat "${2}"
     echo
   fi
 }
 
 # Validate input to the script.
 if [[ -z "${1}" ]]; then
   usage
   exit ${E_BADARGS}
-elif [[ ! -d "${1}" ]]; then
-  echo "${1} is not a directory."
+elif [[ -z "${2}" ]]; then
+  usage
+  exit ${E_BADARGS}
+elif [[ ! -x "${1}" ]]; then
+  echo "${1} is not an executable"
+  usage
+  exit ${E_BADARGS}
+elif [[ ! -f "${2}" ]]; then
+  echo "${2} could not be found"
   usage
   exit ${E_BADARGS}
 else
-  export CLANG_DIR="${PWD}/${1}"
-  echo "Using clang directory ${CLANG_DIR}..."
+  export CLANG_PATH="${1}"
+  export PLUGIN_PATH="${2}"
+  echo "Using clang ${CLANG_PATH}..."
+  echo "Using plugin ${PLUGIN_PATH}..."
 
   # The golden files assume that the cwd is this directory. To make the script
   # work no matter what the cwd is, explicitly cd to there.
   cd "$(dirname "${0}")"
-
-  export LIBNAME=$(grep LIBRARYNAME ../Makefile | cut -d ' ' -f 3)
-  if [ "$(uname -s)" = "Linux" ]; then
-    export LIB=so
-  elif [ "$(uname -s)" = "Darwin" ]; then
-    export LIB=dylib
-  fi
 fi
 
 for input in *.cpp; do
   do_testcase "${input}" "${input%cpp}txt" "${input%cpp}flags"
 done
 
 if [[ "${failed_any_test}" ]]; then
   exit ${E_FAILEDTEST}
 fi