Set omnifunc after sending didOpen notification.

Which will enable integration with mucomplete and other completion plugins. See #162.

Author: Junfeng Li

rplugin/python3/LanguageClient/LanguageClient.py

@@ -516,6 +516,8 @@ def textDocument_didOpen(self, uri: str, languageId: str) -> None:
  }
  })
 
+ state["nvim"].current.buffer.options["omnifunc"] = "LanguageClient#complete"
+
  logger.info("End textDocument/didOpen")
 
  @neovim.function("LanguageClient_textDocument_didClose")
@@ -997,7 +999,7 @@ def textDocument_completion(
  return result
 
  @neovim.function("LanguageClient_textDocument_completionOmnifunc")
- @deco_args
+ @deco_args(warn=False)
  def textDocument_completionOmnifunc(self, completeFromColumn: int) -> None:
  result = self.textDocument_completion()
  if result is None: