Data: stopgap perf bug fix in

Previously computed whole move pool just to see whether it's empty. It accounts for about 25% of the test suite runtime.

data/random-battles/gen9/teams.ts

@@ -1988,7 +1988,7 @@ export class RandomTeams {
 			for (const species of speciesPool) {
 				if (species.isNonstandard && species.isNonstandard !== 'Unobtainable') continue;
 				if (requireMoves) {
-					const hasMovesInCurrentGen = this.dex.species.getMovePool(species.id).size;
+					const hasMovesInCurrentGen = this.dex.species.getMovePool(species.id, false, 1).size;
 					if (!hasMovesInCurrentGen) continue;
 				}
 				if (requiredType && !species.types.includes(requiredType)) continue;

sim/dex-species.ts

@@ -578,12 +578,13 @@ export class DexSpecies {
 	/**
 	 * @param id the ID of the species the move pool belongs to
 	 * @param isNatDex
+	 * @param sizeLimit  0 for all
 	 * @returns a Set of IDs of the full valid movepool of the given species for the current generation/mod.
 	 * Note that inter-move incompatibilities, such as those from exclusive events, are not considered and all moves are
 	 * lumped together. However, Necturna and Necturine's Sketchable moves are omitted from this pool, as their fundamental
 	 * incompatibility with each other is essential to the nature of those species.
 	 */
-	getMovePool(id: ID, isNatDex = false): Set<ID> {
+	getMovePool(id: ID, isNatDex = false, sizeLimit = 0): Set<ID> {
 		let eggMovesOnly = false;
 		let maxGen = this.dex.gen;
 		const gen3HMMoves = ['cut', 'fly', 'surf', 'strength', 'flash', 'rocksmash', 'waterfall', 'dive'];
@@ -592,6 +593,9 @@ export class DexSpecies {
 		for (const {species, learnset} of this.getFullLearnset(id)) {
 			if (!eggMovesOnly) eggMovesOnly = this.eggMovesOnly(species, this.get(id));
 			for (const moveid in learnset) {
+				if (sizeLimit && movePool.size >= sizeLimit) {
+					return movePool;
+				}
 				if (species.isNonstandard !== 'CAP') {
 					if (gen4HMMoves.includes(moveid) && this.dex.gen >= 5) {
 						if (!learnset[moveid].some(source => parseInt(source.charAt(0)) >= 5 &&