ProjectExplorer: Fix ToolChain::isAutoDetected()

Amends d116559cd8.

Fixes: QTCREATORBUG-24545
Change-Id: I3a6c198a6ef2db91c4c3eb75721657e0c491e665
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/projectexplorer/toolchain.cpp

@@ -155,6 +155,11 @@ void ToolChain::setDisplayName(const QString &name)
     toolChainUpdated();
 }
 
+bool ToolChain::isAutoDetected() const
+{
+    return detection() == AutoDetection || detection() == AutoDetectionFromSdk;
+}
+
 ToolChain::Detection ToolChain::detection() const
 {
     return d->m_detection;