Replace explicit parameter with it : correct handling of it from outer lambda #KT-12437 Fixed

(cherry picked from commit cb8fe96)

idea/src/org/jetbrains/kotlin/idea/intentions/ReplaceExplicitFunctionLiteralParamWithItIntention.kt

@@ -47,17 +47,19 @@ class ReplaceExplicitFunctionLiteralParamWithItIntention() : PsiElementBaseInten
         if (parameter.typeReference != null) return false
 
         if (functionLiteral.anyDescendantOfType<KtFunctionLiteral>() { literal ->
-            literal !== functionLiteral &&
-            !literal.hasParameterSpecification() &&
-            literal.anyDescendantOfType<KtSimpleNameExpression> { nameExpr ->
-                nameExpr.getReferencedName() == element.text
-            }
+            literal.usesName(element.text) &&
+            (!literal.hasParameterSpecification() || literal.usesName("it"))
         } ) return false
 
         text = "Replace explicit parameter '${parameter.name}' with 'it'"
         return true
     }
 
+    private fun KtFunctionLiteral.usesName(name: String): Boolean =
+            anyDescendantOfType<KtSimpleNameExpression> {
+                nameExpr -> nameExpr.getReferencedName() == name
+            }
+
     override fun startInWriteAction(): Boolean = false
 
     override fun invoke(project: Project, editor: Editor, element: PsiElement) {