Update reference tests

Author: certik

tests/reference/asr-bindc_10e-8b10394.json

@@ -0,0 +1,13 @@
+{
+    "basename": "asr-bindc_10e-8b10394",
+    "cmd": "lpython --show-asr --no-color {infile} -o {outfile}",
+    "infile": "tests/errors/bindc_10e.py",
+    "infile_hash": "36d1b5d366716d6a601db544fe8ff32aba76518181e71a98a4e6500c",
+    "outfile": null,
+    "outfile_hash": null,
+    "stdout": null,
+    "stdout_hash": null,
+    "stderr": "asr-bindc_10e-8b10394.stderr",
+    "stderr_hash": "7686dd8c9b718548d301e28d39cd15a85b00030172c5658b38a75af5",
+    "returncode": 2
+}

tests/reference/asr-bindc_10e-8b10394.stderr

@@ -0,0 +1,12 @@
+semantic error: The struct in c_p_pointer must be C interoperable
+  --> tests/errors/bindc_10e.py:23:38
+   |
+23 |     p2: Pointer[S] = c_p_pointer(p1, S)
+   |                                      ^ not C interoperable
+   |
+15 |    class S:
+   |    ~~~~~~~~...
+...
+   |
+17 |        b: i64
+   | ...~~~~~~~~~~ help: add the @ccallable decorator to this struct to make it C interoperable

tests/reference/asr-structs_02-2ab459a.json

@@ -2,11 +2,11 @@
     "basename": "asr-structs_02-2ab459a",
     "cmd": "lpython --show-asr --no-color {infile} -o {outfile}",
     "infile": "tests/../integration_tests/structs_02.py",
-    "infile_hash": "6d54aa7c2bb850cbce2c0add7b77f9f72c9323162ae080c7eef4867a",
+    "infile_hash": "281bc75fb743f18fb6f011b278d7ab8103cc688f5856a59cb1f54895",
     "outfile": null,
     "outfile_hash": null,
     "stdout": "asr-structs_02-2ab459a.stdout",
-    "stdout_hash": "e5df0fb84bfc694b884736c1c4a5ddaec25933d8dba54e894de3e961",
+    "stdout_hash": "3a3e1108225886c52d459a08a26d5b35d4aea338982034d43079769d",
     "stderr": null,
     "stderr_hash": null,
     "returncode": 0

tests/reference/asr-structs_02-2ab459a.stdout

@@ -304,28 +304,6 @@
                                             ()
                                         )
                                         ()
-                                    )
-                                    (CPtrToPointer
-                                        (Var 3 a)
-                                        (Var 3 a2)
-                                        ()
-                                        ()
-                                    )
-                                    (Print
-                                        ()
-                                        [(Var 3 a)
-                                        (Var 3 a2)
-                                        (GetPointer
-                                            (Var 3 a1)
-                                            (Pointer
-                                                (Struct
-                                                    8 A
-                                                )
-                                            )
-                                            ()
-                                        )]
-                                        ()
-                                        ()
                                     )]
                                     ()
                                     Public