style(clang-tidy):fix clang-tidy errors on valid_examples (#431)

Refs #429

Signed-off-by: Balakrishna Avulapati <bavulapati@gmail.com>

Author: bavulapati

src/linter/valid_examples.cc

@@ -1,8 +1,17 @@
+#include <sourcemeta/blaze/compiler.h>
+#include <sourcemeta/blaze/compiler_output.h>
 #include <sourcemeta/blaze/evaluator.h>
 #include <sourcemeta/blaze/linter.h>
+#include <sourcemeta/core/json_value.h>
+#include <sourcemeta/core/jsonschema.h>
+#include <sourcemeta/core/jsonschema_frame.h>
+#include <sourcemeta/core/jsonschema_transform.h>
+#include <sourcemeta/core/jsonschema_types.h>
 
+#include <cstddef>    // std::size_t
 #include <functional> // std::ref, std::cref
 #include <sstream>    // std::ostringstream
+#include <utility>    // std::move
 
 namespace sourcemeta::blaze {