Fix  duplicated `Typeid()` function declarations problem
Fix  duplicated `Typeid()` function declarations problem

[issue](https://github.com/antlr/antlr4/issues/2353)
we would got an redeclaration error sicne the difference between old two functions are just return type, that's not enought to distinguish them by compiler

antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4,antlr/grammars-v4