ProjectExplorer: Split up the IOutputParser class

For symmetry with Utils::OutputFormatter.

Task-number: QTCREATORBUG-22665
Change-Id: I148fed69dba042ad3ef26e080829c31cd3f357fd
Reviewed-by: hjk <hjk@qt.io>

src/plugins/nim/project/nimtoolchain.cpp

@@ -120,7 +120,7 @@ void NimToolChain::setCompilerCommand(const FilePath &compilerCommand)
     parseVersion(compilerCommand, m_version);
 }
 
-QList<IOutputParser *> NimToolChain::outputParsers() const
+QList<OutputTaskParser *> NimToolChain::createOutputParsers() const
 {
     return {};
 }