LibJS: Move Temporal AO structs/enum classes above function declarations

This is a bit closer to our usual style, and tidier.

Userland/Libraries/LibJS/Runtime/Temporal/AbstractOperations.h

@@ -12,17 +12,12 @@
 
 namespace JS::Temporal {
 
-Object* get_options_object(GlobalObject&, Value options);
 enum class OptionType {
     Boolean,
     String,
     Number
 };
-Value get_option(GlobalObject&, Object& options, String const& property, Vector<OptionType> const& types, Vector<StringView> const& values, Value fallback);
-String to_temporal_rounding_mode(GlobalObject&, Object& normalized_options, String const& fallback);
-u64 to_temporal_rounding_increment(GlobalObject&, Object& normalized_options, Optional<double> dividend, bool inclusive);
-Optional<String> to_smallest_temporal_unit(GlobalObject&, Object& normalized_options, Vector<StringView> const& disallowed_units, Optional<String> fallback);
-BigInt* round_number_to_increment(GlobalObject&, BigInt const&, u64 increment, String const& rounding_mode);
+
 struct ISODateTime {
     i32 year;
     i32 month;
@@ -35,7 +30,7 @@ struct ISODateTime {
     i32 nanosecond;
     Optional<String> calendar;
 };
-Optional<ISODateTime> parse_iso_date_time(GlobalObject&, String const& iso_string);
+
 struct TemporalInstant {
     i32 year;
     i32 month;
@@ -48,12 +43,21 @@ struct TemporalInstant {
     i32 nanosecond;
     Optional<String> time_zone_offset;
 };
-Optional<TemporalInstant> parse_temporal_instant_string(GlobalObject&, String const& iso_string);
+
 struct TemporalTimeZone {
     bool z;
     Optional<String> offset;
     Optional<String> name;
 };
+
+Object* get_options_object(GlobalObject&, Value options);
+Value get_option(GlobalObject&, Object& options, String const& property, Vector<OptionType> const& types, Vector<StringView> const& values, Value fallback);
+String to_temporal_rounding_mode(GlobalObject&, Object& normalized_options, String const& fallback);
+u64 to_temporal_rounding_increment(GlobalObject&, Object& normalized_options, Optional<double> dividend, bool inclusive);
+Optional<String> to_smallest_temporal_unit(GlobalObject&, Object& normalized_options, Vector<StringView> const& disallowed_units, Optional<String> fallback);
+BigInt* round_number_to_increment(GlobalObject&, BigInt const&, u64 increment, String const& rounding_mode);
+Optional<ISODateTime> parse_iso_date_time(GlobalObject&, String const& iso_string);
+Optional<TemporalInstant> parse_temporal_instant_string(GlobalObject&, String const& iso_string);
 Optional<TemporalTimeZone> parse_temporal_time_zone_string(GlobalObject&, String const& iso_string);
 
 }