message: test(runtime-c-api) Fix compilation errors in `test-import-function.c`.
diff: #include <stdint.h>
  #include <string.h>
  -static print_str_called = false;
  -static memory_len = 0;
  -static ptr_len = 0;
  +static bool print_str_called = false;
  +static int memory_len = 0;
  +static int ptr_len = 0;
  static char actual_str[14] = {};
  void print_str(wasmer_instance_context_t *ctx, int32_t ptr, int32_t len)
  {
  - wasmer_memory_t *memory = wasmer_instance_context_memory(ctx, 0);
  + const wasmer_memory_t *memory = wasmer_instance_context_memory(ctx, 0);
  uint32_t mem_len = wasmer_memory_length(memory);
  uint8_t *mem_bytes = wasmer_memory_data(memory);
  for (int32_t idx = 0; idx < len; idx++)
  @@ -31,16 +31,16 @@ int main()
  wasmer_value_tag returns_sig[] = {};
  printf("Creating new func\n");
  - wasmer_import_func_t *func = wasmer_import_func_new(print_str, params_sig, 2, returns_sig, 0);
  + const wasmer_import_func_t *func = wasmer_import_func_new((void (*)(void *)) print_str, params_sig, 2, returns_sig, 0);
  wasmer_import_t import;
  char *module_name = "env";
  wasmer_byte_array module_name_bytes;
  - module_name_bytes.bytes = module_name;
  + module_name_bytes.bytes = (const uint8_t *) module_name;
  module_name_bytes.bytes_len = strlen(module_name);
  char *import_name = "print_str";
  wasmer_byte_array import_name_bytes;
  - import_name_bytes.bytes = import_name;
  + import_name_bytes.bytes = (const uint8_t *) import_name;
  import_name_bytes.bytes_len = strlen(import_name);
  import.module_name = module_name_bytes;
  