GBA Core: Fix memory leak when loading symbols

CHANGES

@@ -10,6 +10,7 @@ Other fixes:
  - 3DS: Fix crash with libctru 2.0 when exiting
  - Core: Fix reported ROM size when a fixed buffer size is used
  - GBA: Disable more checks when loading GS save with checks disabled (fixes mgba.io/i/1851)
+ - GBA Core: Fix memory leak when loading symbols
  - Qt: Add dummy English translation file (fixes mgba.io/i/1469)
  - mGUI: Fix closing down a game if an exit is signalled
  - mVL: Fix injecting accidentally draining non-injection buffer

src/gba/core.c

@@ -216,6 +216,11 @@ 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);