Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"

This reverts commit ef8206320769ad31422a803a0d6de6077fd231d2.

- It conflicts with the existing llvm::size in STLExtras, which will now
  never be called.
- Calling it without llvm:: breaks C++17 compat

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/unittests/Tooling/CompilationDatabaseTest.cpp b/clang/unittests/Tooling/CompilationDatabaseTest.cpp
index 94ccdca..adb9de0 100644
--- a/clang/unittests/Tooling/CompilationDatabaseTest.cpp
+++ b/clang/unittests/Tooling/CompilationDatabaseTest.cpp
@@ -642,7 +642,7 @@ TEST(ParseFixedCompilationDatabase, HandlesPositionalArgsSyntaxOnly) {
   // Adjust the given command line arguments to ensure that any positional
   // arguments in them are stripped.
   const char *Argv[] = {"--", "somefile.cpp", "-fsyntax-only", "-DDEF3"};
-  int Argc = llvm::size(Argv);
+  int Argc = llvm::array_lengthof(Argv);
   std::string ErrorMessage;
   std::unique_ptr<CompilationDatabase> Database =
       FixedCompilationDatabase::loadFromCommandLine(Argc, Argv, ErrorMessage);