Add 'operator' keyword

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/stubBuilder/CallableClsStubBuilder.kt

@@ -98,7 +98,13 @@ private class CallableClsStubBuilder(
         val modalityModifiers = if (isModalityIrrelevant) listOf() else listOf(MODALITY)
         val constModifiers = if (callableKind == CallableKind.VAL) listOf(CONST) else listOf()
 
-        val relevantModifiers = listOf(VISIBILITY) + constModifiers + modalityModifiers
+        val additionalModifiers = when (callableKind) {
+            CallableKind.FUN -> arrayOf(OPERATOR)
+            CallableKind.VAL, CallableKind.VAR -> arrayOf(LATEINIT)
+            else -> emptyArray<FlagsToModifiers>()
+        }
+
+        val relevantModifiers = listOf(VISIBILITY) + constModifiers + modalityModifiers + additionalModifiers
         val modifierListStubImpl = createModifierListStubForDeclaration(
                 callableStub, callableProto.getFlags(), relevantModifiers
         )

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/stubBuilder/clsStubBuilding.kt

@@ -191,6 +191,18 @@ enum class FlagsToModifiers {
         override fun getModifiers(flags: Int): JetModifierKeywordToken? {
             return if (Flags.IS_CONST.get(flags)) JetTokens.CONST_KEYWORD else null
         }
+    },
+
+    LATEINIT {
+        override fun getModifiers(flags: Int): JetModifierKeywordToken? {
+            return if (Flags.LATE_INIT.get(flags)) JetTokens.LATE_INIT_KEYWORD else null
+        }
+    },
+
+    OPERATOR {
+        override fun getModifiers(flags: Int): JetModifierKeywordToken? {
+            return if (Flags.IS_OPERATOR.get(flags)) JetTokens.OPERATOR_KEYWORD else null
+        }
     };
 
     abstract fun getModifiers(flags: Int): JetModifierKeywordToken?