Place inference from getters under the language feature

compiler/frontend/src/org/jetbrains/kotlin/resolve/DeclarationsChecker.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.resolve
 import com.google.common.collect.ImmutableSet
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
+import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
@@ -737,6 +738,9 @@ class DeclarationsChecker(
                     trace.report(MUST_BE_INITIALIZED_OR_BE_ABSTRACT.on(property))
                 }
             }
+            else if (property.typeReference == null && !languageVersionSettings.supportsFeature(LanguageFeature.ShortSyntaxForPropertyGetters)) {
+                trace.report(Errors.UNSUPPORTED_FEATURE.on(property, LanguageFeature.ShortSyntaxForPropertyGetters))
+            }
             else if (noExplicitTypeOrGetterType(property)) {
                 trace.report(PROPERTY_WITH_NO_TYPE_NO_INITIALIZER.on(property))
             }