[clangd] Use buildCompilerInvocation to simplify the HeadersTests, NFC.
diff --git a/clang-tools-extra/unittests/clangd/HeadersTests.cpp b/clang-tools-extra/unittests/clangd/HeadersTests.cpp
index 4c8ef07..bd28f71 100644
--- a/clang-tools-extra/unittests/clangd/HeadersTests.cpp
+++ b/clang-tools-extra/unittests/clangd/HeadersTests.cpp
@@ -44,17 +44,11 @@
auto VFS = FS.getFileSystem();
VFS->setCurrentWorkingDirectory(Cmd->Directory);
- std::vector<const char *> Argv;
- for (const auto &S : Cmd->CommandLine)
- Argv.push_back(S.c_str());
- auto CI = clang::createInvocationFromCommandLine(
- Argv,
- CompilerInstance::createDiagnostics(new DiagnosticOptions(),
- &IgnoreDiags, false),
- VFS);
+ ParseInputs PI;
+ PI.CompileCommand = *Cmd;
+ PI.FS = VFS;
+ auto CI = buildCompilerInvocation(PI);
EXPECT_TRUE(static_cast<bool>(CI));
- CI->getFrontendOpts().DisableFree = false;
-
// The diagnostic options must be set before creating a CompilerInstance.
CI->getDiagnosticOpts().IgnoreWarnings = true;
auto Clang = prepareCompilerInstance(
