(1.1 only) Var can be val: correct handling of delegated local variables #KT-14409 Fixed

idea/testData/inspections/canBeVal/inspectionData/expected.xml

@@ -79,4 +79,13 @@
         <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Local 'var' is never modified and can be declared as 'val'</problem_class>
         <description>Variable is never modified and can be declared immutable using 'val'</description>
     </problem>
+
+    <problem>
+        <file>withReadOnlyDelegate.kt</file>
+        <line>4</line>
+        <module>light_idea_test_case</module>
+        <entry_point TYPE="file" FQNAME="withReadOnlyDelegate.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Local 'var' is never modified and can be declared as 'val'</problem_class>
+        <description>Variable is never modified and can be declared immutable using 'val'</description>
+    </problem>
 </problems>

idea/testData/inspections/canBeVal/withDelegate.kt

@@ -0,0 +1,6 @@
+// WITH_RUNTIME
+
+fun foo() {
+    var s: String by Delegates.notNull()
+    s = ""
+}

idea/testData/inspections/canBeVal/withReadOnlyDelegate.kt

@@ -0,0 +1,6 @@
+// WITH_RUNTIME
+
+fun foo() {
+    var s: String by lazy { "Hello!" }
+    s.hashCode()
+}