diff --git a/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/pseudocodeUtils.kt b/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/pseudocodeUtils.kt
index 4b192b28388..2845f5dcc0e 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/pseudocodeUtils.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/cfg/pseudocode/pseudocodeUtils.kt
@@ -299,7 +299,6 @@ fun KtElement.getContainingPseudocode(context: BindingContext): Pseudocode? {
 
     val enclosingPseudocode = PseudocodeUtil.generatePseudocode(enclosingPseudocodeDeclaration, context)
     return enclosingPseudocode.getPseudocodeByElement(pseudocodeDeclaration)
-           ?: throw AssertionError("Can't find nested pseudocode for element: ${pseudocodeDeclaration.getElementTextWithContext()}")
 }
 
 fun Pseudocode.getPseudocodeByElement(element: KtElement): Pseudocode? {
diff --git a/idea/testData/quickfix/createFromUsage/createFunction/call/kt10983.kt b/idea/testData/quickfix/createFromUsage/createFunction/call/kt10983.kt
new file mode 100644
index 00000000000..454ee8a96a1
--- /dev/null
+++ b/idea/testData/quickfix/createFromUsage/createFunction/call/kt10983.kt
@@ -0,0 +1,15 @@
+// "Create function" "false"
+// ERROR: A 'return' expression required in a function with a block body ('{...}')
+// ERROR: Cannot infer a type for this parameter. Please specify it explicitly.
+// ERROR: Cannot infer a type for this parameter. Please specify it explicitly.
+// ERROR: Expression 'return groupsByLength.values.firstOrNull { group -> {group.size == maximumSizeOfGroup} }' cannot be a selector (occur after a dot)
+// ERROR: Unresolved reference: groupBy
+// ERROR: Unresolved reference: it
+// ERROR: Unresolved reference: maximumSizeOfGroup
+
+fun doSomethingStrangeWithCollection(collection: Collection<String>): Collection<String>? {
+    val groupsByLength = collection.groupBy { s -> { s.length } }
+
+    val maximumSizeOfGroup = groupsByLength.values.maxBy { it.size }.
+    return groupsByLength.values.firstOrNull { group -> {group.size == maximumSizeOfGroup} }
+}
diff --git a/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java b/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java
index 4d9235c69ad..b017aa48ba5 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java
+++ b/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java
@@ -1988,6 +1988,12 @@ public class QuickFixTestGenerated extends AbstractQuickFixTest {
                     doTest(fileName);
                 }
 
+                @TestMetadata("kt10983.kt")
+                public void testKt10983() throws Exception {
+                    String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/createFromUsage/createFunction/call/kt10983.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("localFunNoReceiver.kt")
                 public void testLocalFunNoReceiver() throws Exception {
                     String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/createFromUsage/createFunction/call/localFunNoReceiver.kt");