message: feat(llvm-backend) Update `ImportedFunc` structure.
  `vm::ImportedFunc` in `runtime-core` has changed. Update LLVM accordingly.
diff: @@ -210,8 +210,13 @@ impl Intrinsics {
  context.struct_type(&[i8_ptr_ty_basic, i64_ty_basic, i8_ptr_ty_basic], false);
  let local_table_ty = local_memory_ty;
  let local_global_ty = i64_ty;
  - let imported_func_ty =
  - context.struct_type(&[i8_ptr_ty_basic, ctx_ptr_ty.as_basic_type_enum()], false);
  + let func_ctx_ty =
  + context.struct_type(&[ctx_ptr_ty.as_basic_type_enum(), i8_ptr_ty_basic], false);
  + let func_ctx_ptr_ty = func_ctx_ty.ptr_type(AddressSpace::Generic);
  + let imported_func_ty = context.struct_type(
  + &[i8_ptr_ty_basic, func_ctx_ptr_ty.as_basic_type_enum()],
  + false,
  + );
  let sigindex_ty = i32_ty;
  let rt_intrinsics_ty = i8_ty;
  let stack_lower_bound_ty = i8_ty;
  @@ -1118,16 +1123,20 @@ impl<'a> CtxType<'a> {
  "imported_func_ptr",
  )
  };
  - let (func_ptr_ptr, ctx_ptr_ptr) = unsafe {
  + let (func_ptr_ptr, func_ctx_ptr_ptr) = unsafe {
  (
  cache_builder.build_struct_gep(imported_func_ptr, 0, "func_ptr_ptr"),
  - cache_builder.build_struct_gep(imported_func_ptr, 1, "ctx_ptr_ptr"),
  + cache_builder.build_struct_gep(imported_func_ptr, 1, "func_ctx_ptr_ptr"),
  )
  };
  let func_ptr = cache_builder
  .build_load(func_ptr_ptr, "func_ptr")
  .into_pointer_value();
  + let func_ctx_ptr = cache_builder
  + .build_load(func_ctx_ptr_ptr, "func_ctx_ptr")
  + .into_pointer_value();
  + let ctx_ptr_ptr = unsafe { cache_builder.build_struct_gep(func_ctx_ptr, 0, "ctx_ptr") };
  let ctx_ptr = cache_builder
  .build_load(ctx_ptr_ptr, "ctx_ptr")
  .into_pointer_value();
  