Fix dump call stack issue in interpreter (#1358)

Fix dump call stack issue in interpreter introduced by hw bound check:
the call stack isn't dumped if the exception is thrown and caught by
signal handler.
And restore the wasm stack frame to the original status after calling a
wasm function.

core/iwasm/interpreter/wasm_interp.h

@@ -89,6 +89,18 @@ wasm_interp_call_wasm(struct WASMModuleInstance *module_inst,
                       struct WASMFunctionInstance *function, uint32 argc,
                       uint32 argv[]);
 
+/**
+ * @brief Restore the wasm stack frame to the last native frame or the begging
+ * of the whole stack
+ * @note e.g. for stack "begin --> interp --> interp", it will back to the
+ * "begin", for stack "begin --> interp --> native --> interp", it will become
+ * "begin --> interp --> native"
+ *
+ * @param exec_env the execution environment
+ */
+void
+wasm_interp_restore_wasm_frame(struct WASMExecEnv *exec_env);
+
 #ifdef __cplusplus
 }
 #endif