Do not optimize == for KClasses in redundant boxing elimination

For primitive wrappers such as java.lang.Integer,
  jlc = java.lang.Integer.class
  jlt = java.lang.Integer.TYPE
  !(ljc.equals(ljt))
However, in Kotlin corresponding KClass instances are equal.

 #KT-17748 Fixed Target versions 1.1.50
 #KT-17879 Fixed Target versions 1.1.50

compiler/backend/src/org/jetbrains/kotlin/codegen/optimization/boxing/BoxingInterpreter.kt

@@ -233,11 +233,10 @@ fun AbstractInsnNode.isAreEqualIntrinsic() =
             desc == "(Ljava/lang/Object;Ljava/lang/Object;)Z"
         }
 
+private val shouldUseEqualsForWrappers = setOf(Type.DOUBLE_TYPE, Type.FLOAT_TYPE, AsmTypes.JAVA_CLASS_TYPE)
+
 fun canValuesBeUnboxedForAreEqual(values: List<BasicValue>): Boolean =
-        !values.any {
-            val unboxedType = getUnboxedType(it.type)
-            unboxedType == Type.DOUBLE_TYPE || unboxedType == Type.FLOAT_TYPE
-        }
+        values.none { getUnboxedType(it.type) in shouldUseEqualsForWrappers }
 
 fun AbstractInsnNode.isJavaLangComparableCompareToForSameTypedBoxedValues(values: List<BasicValue>) =
         isJavaLangComparableCompareTo() && areSameTypedBoxedValues(values)