Tries to fix the fuzzer build

Building the fuzzers did not work for me.

It looks like the commit `8426914` broke the `fuzz/fuzz-configuration-json.cpp`
and the commit `fe5742f` broke the `fuzz/fuzz-parse-ling.cpp`

fuzz/fuzz-configuration-json.cpp

@@ -5,6 +5,7 @@
 #include <cstdint>
 #include <quick-lint-js/configuration/configuration.h>
 #include <quick-lint-js/container/padded-string.h>
+#include <quick-lint-js/diag/diag-list.h>
 #include <quick-lint-js/diag/diag-reporter.h>
 #include <quick-lint-js/port/char8.h>
 
@@ -14,7 +15,9 @@ int LLVMFuzzerTestOneInput(const std::uint8_t *data, std::size_t size) {
 
   Padded_String json(String8(reinterpret_cast<const Char8 *>(data), size));
   Configuration c;
-  c.load_from_json(&json, &Null_Diag_Reporter::instance);
+  Monotonic_Allocator temp_memory("fuzz");
+  Diag_List diags(&temp_memory);
+  c.load_from_json(&json, &diags);
 
   return 0;
 }

fuzz/fuzz-parse-lint.cpp

@@ -3,6 +3,7 @@
 
 #include <cstddef>
 #include <cstdint>
+#include <quick-lint-js/configuration/configuration.h>
 #include <quick-lint-js/container/padded-string.h>
 #include <quick-lint-js/diag/diag-reporter.h>
 #include <quick-lint-js/fe/global-declared-variable-set.h>
@@ -13,10 +14,13 @@ extern "C" {
 int LLVMFuzzerTestOneInput(const std::uint8_t *data, std::size_t size) {
   quick_lint_js::Padded_String source(quick_lint_js::String8(
       reinterpret_cast<const quick_lint_js::Char8 *>(data), size));
-  quick_lint_js::Global_Declared_Variable_Set globals;
+
+  quick_lint_js::Configuration config;
   quick_lint_js::parse_and_lint(&source,
                                 quick_lint_js::Null_Diag_Reporter::instance,
-                                globals, quick_lint_js::Linter_Options());
+                                quick_lint_js::Linter_Options{
+                                    .configuration = &config,
+                                });
   return 0;
 }
 }