Fixes Eject Items causing wrong pokemon to take damage from entry hazards

[PhallenTree]

Description

Fixes Eject Items causing gBattlerFainted to take entry hazard damage instead of the pokemon switching in, since SetDmgHazardsBattlescript did not account for calls with BS_SCRIPTING. This PR handles that.

Issue(s) that this PR fixes

Fixes #4457

Discord contact info

PhallenTree

[AlexOn1ine]

Could you please add the following test to the file test/stealth_rock.c?

SINGLE_BATTLE_TEST("Stealth Rock damages the correct pokemon when Eject Button is triggered")
{
    GIVEN {
        PLAYER(SPECIES_METAPOD) { Item(ITEM_EJECT_BUTTON); }
        PLAYER(SPECIES_METAPOD);
        OPPONENT(SPECIES_JOLTEON);
    } WHEN {
        TURN { MOVE(opponent, MOVE_STEALTH_ROCK); MOVE(player, MOVE_HARDEN); }
        TURN { MOVE(opponent, MOVE_QUICK_ATTACK); MOVE(player, MOVE_HARDEN); SEND_OUT(player, 1); }
    } SCENE {
        ANIMATION(ANIM_TYPE_MOVE, MOVE_STEALTH_ROCK, opponent);
        ANIMATION(ANIM_TYPE_MOVE, MOVE_HARDEN, player);
        ANIMATION(ANIM_TYPE_MOVE, MOVE_QUICK_ATTACK, opponent);
        NOT ANIMATION(ANIM_TYPE_MOVE, MOVE_HARDEN, player);
        ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_HELD_ITEM_EFFECT, player);
        MESSAGE("Go! Metapod!")
        HP_BAR(player);
    } THEN {
        EXPECT_EQ(opponent->hp, opponent->maxHP);
    }
}

If possible please run it before commit with the command:

make -jN check TESTS='Stealth Rock damages the correct pokemon when Eject Button is triggered`

[hedara90]

DOUBLE_BATTLE_TEST("Stealth Rock damages the correct pokemon when Eject Button is triggered in double battle")
{
    GIVEN {
        PLAYER(SPECIES_METAPOD) { Item(ITEM_EJECT_BUTTON); }
        PLAYER(SPECIES_METAPOD) { Item(ITEM_EJECT_BUTTON); }
        PLAYER(SPECIES_METAPOD);
        OPPONENT(SPECIES_JOLTEON);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(opponentLeft, MOVE_STEALTH_ROCK); MOVE(opponentRight, MOVE_TACKLE, target: playerLeft); SEND_OUT(playerLeft, 2); }
    } SCENE {
        ANIMATION(ANIM_TYPE_MOVE, MOVE_STEALTH_ROCK, opponentLeft);
        ANIMATION(ANIM_TYPE_MOVE, MOVE_TACKLE, opponentRight);
        ANIMATION(ANIM_TYPE_GENERAL, B_ANIM_HELD_ITEM_EFFECT, playerLeft);
        MESSAGE("Go! Metapod!");
        HP_BAR(playerLeft);
    } THEN {
        EXPECT_EQ(opponentLeft->hp, opponentLeft->maxHP);
    }
}

Test for double battle