Patch test projects so they build without deprecated features

Also ensure the test scripts pass shellcheck

test/patches/LADX-Disassembly.patch

@@ -0,0 +1,15 @@
+diff --git a/Makefile b/Makefile
+index d05ccba..1011447 100644
+--- a/Makefile
++++ b/Makefile
+@@ -13,9 +13,7 @@ RGBDS   :=
+ 
+ ASM     := $(RGBDS)rgbasm
+ ASFLAGS := \
+-  --export-all\
+-  --halt-without-nop\
+-  --preserve-ld
++  --export-all
+ 
+ LD      := $(RGBDS)rgblink
+ LDFLAGS :=