added tests as prepared by oliver

test/ref/cc65091022.c

@@ -0,0 +1,20 @@
+/*
+  !!DESCRIPTION!!
+  !!ORIGIN!!      testsuite
+  !!LICENCE!!     Public Domain
+  !!AUTHOR!!      Johan Kotlinski
+*/
+
+/*
+...gives "test.c(2): Error: Variable `foo' has unknown size" using -Cl.
+Is it really unknown?
+
+cc65 V2.13.0, SVN version: 4384
+*/
+
+int main() {
+    char foo[] = { 0 };
+    printf("it works :)\n");
+
+    return 0;
+}