GBA Core: Fix memory leak when loading symbols

CHANGES

@@ -44,6 +44,7 @@ Other fixes:
  - FFmpeg: Fix encoding of time base
  - GBA: Disable more checks when loading GS save with checks disabled (fixes mgba.io/i/1851)
  - GBA: Fix endianness issues in renderer proxy
+ - GBA Core: Fix memory leak when loading symbols
  - Qt: Force OpenGL paint engine creation thread (fixes mgba.io/i/1642)
  - Qt: Fix static compilation in MinGW (fixes mgba.io/i/1769)
  - Qt: Fix a race condition in the frame inspector

src/gba/core.c

@@ -220,6 +220,11 @@ static void _GBACoreDeinit(struct mCore* core) {
 #if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
 	mDirectorySetDeinit(&core->dirs);
 #endif
+#ifdef USE_DEBUGGERS
+	if (core->symbolTable) {
+		mDebuggerSymbolTableDestroy(core->symbolTable);
+	}
+#endif
 
 	struct GBACore* gbacore = (struct GBACore*) core;
 	free(gbacore->debuggerPlatform);