Fix loader parse block type and calculate dynamic offset for loop args (#3482)

Fix several issues in wasm loader:
- Parse a block's type index with leb int32 instead leb uint32
- Correct dst dynamic offset of loop block arguments for opcode br
  when copying the stack operands to the arguments of loop block
- Free each frame_csp's param_frame_offsets when destroy loader ctx
- Fix compilation error in wasm_mini_loader.c
- Add test cases of failed issues

This PR fixes issue #3467 and #3468.

tests/regression/ba-issues/running_config.json

@@ -1674,6 +1674,38 @@
                 "stdout content": "Hello from Kotlin via WASI\nCurrent 'realtime' timestamp is:",
                 "description": "no 'type mismatch: expect (ref null ht) but got other1 unknown type'"
             }
+        },
+        {
+            "deprecated": false,
+            "ids": [
+                3467
+            ],
+            "runtime": "iwasm-default-wasi-disabled",
+            "file": "tt_unreachable.wasm",
+            "mode": "fast-interp",
+            "options": "--heap-size=0 -f to_test",
+            "argument": "",
+            "expected return": {
+                "ret code": 1,
+                "stdout content": "Exception: unreachable",
+                "description": "no '-1.861157e+19:f32'"
+            }
+        },
+        {
+            "deprecated": false,
+            "ids": [
+                3468
+            ],
+            "runtime": "iwasm-default-wasi-disabled",
+            "file": "i64.add.wasm",
+            "mode": "fast-interp",
+            "options": "--heap-size=0 -f to_test",
+            "argument": "",
+            "expected return": {
+                "ret code": 255,
+                "stdout content": "WASM module load failed: unknown type",
+                "description": "no '0x0:i64'"
+            }
         }
     ]
 }