GC2D/GCConsole2: match startAppearCoin

[KakarottoCake]

Summary

• spell the coin-counter pane visibility test explicitly
• match TGCConsole2::startAppearCoin

Results

• GCConsole2: 26/60 -> 27/60
• project-wide: 8097/12881 -> 8098/12881

Testing

• full bare ninja (mario.dol: OK)
• GCConsole2 symbol linkage validation
• local CI

[decomp-dev]

Report for GMSJ01 (2fdeee7 - e2e1e16)

📈 Matched code: 37.45% (+0.01%, +316 bytes)

✅ 1 new match

Unit	Item	Bytes	Before	After
mario/GC2D/GCConsole2	TGCConsole2::startAppearCoin()	+1	99.86%	100.00%

[Mrkol]

Fakematch, make the clanker tackle everything BUT stack frame sizes.