Kotlin: Make emitDiagnostic private

Author: igfoo

java/kotlin-extractor/src/main/kotlin/utils/Logger.kt

@@ -141,7 +141,7 @@ open class LoggerBase(val logCounter: LogCounter) {
         emitDiagnostic(tw, severity, diagnosticLocStr, msg, fullMsg, locationString, mkLocationId)
     }
 
-    fun emitDiagnostic(tw: TrapWriter, severity: Severity, diagnosticLocStr: String, msg: String, fullMsg: String, locationString: String? = null, mkLocationId: () -> Label<DbLocation> = { tw.unknownLocation }) {
+    private fun emitDiagnostic(tw: TrapWriter, severity: Severity, diagnosticLocStr: String, msg: String, fullMsg: String, locationString: String? = null, mkLocationId: () -> Label<DbLocation> = { tw.unknownLocation }) {
         val locStr = if (locationString == null) "" else "At " + locationString + ": "
         val kind = if (severity <= Severity.WarnHigh) "WARN" else "ERROR"
         val logMessage = LogMessage(kind, "Diagnostic($diagnosticLocStr): $locStr$fullMsg")