Couldn't resolve reference to Test 'trial'.

class CustomDiagnostic extends LinkingDiagnosticMessageProvider {
	override DiagnosticMessage getUnresolvedProxyMessage(ILinkingDiagnosticContext context) {
		val DiagnosticMessage diagnostic = super.getUnresolvedProxyMessage(context)
                String msg = "my custom msg"
		return new DiagnosticMessage(msg, diagnostic.getSeverity(),
			diagnostic.getIssueCode(), diagnostic.getIssueData())
	}
}

	override Class<? extends ILinkingDiagnosticMessageProvider> bindILinkingDiagnosticMessageProvider() {
		return CustomDiagnostic 
	}