Temporarily disabled "Unused symbol" for companion objects.

idea/src/org/jetbrains/kotlin/idea/inspections/UnusedSymbolInspection.kt

@@ -107,6 +107,9 @@ public class UnusedSymbolInspection : AbstractKotlinInspection() {
                 if (declaration is JetParameter && (declaration.getParent()?.getParent() !is JetClass || !declaration.hasValOrVarNode())) return
                 if (declaration is JetNamedFunction && isConventionalName(declaration)) return
 
+                // TODO companion objects are temporarily disabled
+                if (isCompanionObject) return
+
                 // More expensive, resolve-based checks
                 if (isEntryPoint(declaration)) return
                 // properties can be referred by component1/component2, which is too expensive to search, don't mark them as unused

idea/testData/inspections/unusedSymbol/object/inspectionData/expected.xml

@@ -32,6 +32,7 @@
     <description>Object 'A' is never used</description>
   </problem>
 
+<!--
   <problem>
     <file>defaultObjectUnused.kt</file>
     <line>2</line>
@@ -49,4 +50,5 @@
     <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Unused Symbol</problem_class>
     <description>Object 'Named' is never used</description>
   </problem>
+-->
 </problems>