Add regression tests of BA issue cases (#3462)

tests/regression/ba-issues/issues/issue-315102/test.wast

@@ -0,0 +1,15 @@
+(module
+  (data $string_data "asdf")
+  (func $print (import "spectest" "print_i32") (param $i i32))
+  (memory $memory (export "memory") 1)
+  (type $string (array (mut i8)))
+  (func $init
+    (local $str (ref null $string))
+    (array.new_data $string $string_data (i32.const 0) (i32.const 4))
+    (local.tee $str)
+    (ref.as_non_null) 
+    (array.len)
+    (call $print)
+  )
+  (export "_start" (func $init))
+)