Add old demo files

demo.old/demo.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int bar(int x) {
+	printf("'I’m %d; how many? %n\n", x, &x);
+	return x;
+}
+
+int foo() {
+	return bar(3);
+}
+
+int main() {
+	return foo();
+}

demo.old/synth.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+SYNTHESIS_SCRIPT="../../../src/dwarf-synthesis/synthesize_dwarf.sh"
+
+if [ "$#" -lt 1 ] ; then
+    >&2 echo -e "Missing argument: object file.\nUsage: $0 object.o"
+    exit 1
+fi
+
+objfile="$1"
+
+$SYNTHESIS_SCRIPT "$objfile" "$objfile.synth"