Rename predef functions so they aren't excessive in length.

This is mostly because of an rgbasm bug that prevents macro arguments
from exceeding 16 characters, but the names were bad anyway.

scripts/celadongamecorner.asm

@@ -157,7 +157,7 @@ CeladonGameCornerText2: ; 48ca9 (12:4ca9)
 	ld hl, $ffa1
 	ld de, wPlayerMoney + 2
 	ld c, $3
-	ld a, $c ; SubtractBCDPredef
+	ld a, $c ; SubBCDPredef
 	call Predef
 	xor a
 	ldh [$9f], a

scripts/daycarem.asm

@@ -156,7 +156,7 @@ DayCareMScript_562e1: ; 562e1 (15:62e1)
 	inc hl
 	ld de, wPlayerMoney + 2
 	ld c, $3
-	ld a, $c ; SubtractBCDPredef
+	ld a, $c ; SubBCDPredef
 	call Predef
 	ld a, (SFX_02_5a - SFX_Headers_02) / 3
 	call PlaySoundWaitForCurrent

scripts/mtmoonpokecenter.asm

@@ -55,7 +55,7 @@ MtMoonPokecenterText4: ; 492ec (12:52ec)
 	ld hl, wTrainerFacingDirection
 	ld de, wPlayerMoney + 2
 	ld c, $3
-	ld a, $c ; SubtractBCDPredef
+	ld a, $c ; SubBCDPredef
 	call Predef
 	ld a, $13
 	ld [wd125], a

scripts/museum1f.asm

@@ -103,7 +103,7 @@ Museum1FText1: ; 5c135 (17:4135)
 	ld hl, wTrainerFacingDirection
 	ld de, wPlayerMoney + 2
 	ld c, $3
-	ld a, $c ; SubtractBCDPredef
+	ld a, $c ; SubBCDPredef
 	call Predef
 	ld a, $13
 	ld [wd125], a

scripts/oakslab.asm

@@ -847,7 +847,7 @@ OaksLabScript_1d157: ; 1d157 (7:5157)
 	ld hl, wd730
 	set 6, [hl]
 	ld a, $46
-	call Predef ; DisplayStarterMonDex
+	call Predef ; StarterDex
 	ld hl, wd730
 	res 6, [hl]
 	call ReloadMapData
@@ -921,7 +921,7 @@ asm_1d1e5: ; 1d1e5 (7:51e5)
 	ld [W_CURENEMYLVL], a
 	ld a, [wcf91]
 	ld [wd11e], a
-	call AddPokemonToParty
+	call AddPartyMon
 	ld hl, wd72e
 	set 3, [hl]
 	ld a, $fc

scripts/safarizoneentrance.asm

@@ -176,7 +176,7 @@ SafariZoneEntranceText4: ; 752ca (1d:52ca)
 	ld hl, wTrainerFacingDirection
 	ld de, wPlayerMoney + 2
 	ld c, $3
-	ld a, $c ; SubtractBCDPredef
+	ld a, $c ; SubBCDPredef
 	call Predef
 	ld a, $13
 	ld [wd125], a