Send ERRCHAR token to parser for unrecognized char. Also make WS go to parser on hidden channel not real token so we can reuse grammar outside of intellij.
Send ERRCHAR token to parser for unrecognized char. Also make WS go to parser on hidden channel not real token so we can reuse grammar outside of intellij.

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