Set type reference: destructuring support #KT-14994 Fixed

compiler/frontend/src/org/jetbrains/kotlin/psi/TypeRefHelpers.kt

@@ -38,7 +38,9 @@ fun setTypeReference(declaration: KtCallableDeclaration, addAfter: PsiElement?,
             return oldTypeRef.replace(typeRef) as KtTypeReference
         }
         else {
-            val anchor = addAfter ?: declaration.nameIdentifier?.siblings(forward = true)?.firstOrNull { it is PsiErrorElement }
+            val anchor = addAfter
+                         ?: declaration.nameIdentifier?.siblings(forward = true)?.firstOrNull { it is PsiErrorElement }
+                         ?: (declaration as? KtParameter)?.destructuringDeclaration
             val newTypeRef = declaration.addAfter(typeRef, anchor) as KtTypeReference
             declaration.addAfter(KtPsiFactory(declaration.project).createColon(), anchor)
             return newTypeRef

idea/testData/intentions/specifyTypeExplicitly/destructuringInLambda.kt

@@ -0,0 +1,3 @@
+data class A(val x: String, val y: String)
+fun foo(a: A, block: (Int, A, String) -> String): String = block(1, a, "#")
+fun bb() = foo(A("O", "K")) { i: Int, (x, y)<caret>, v: String -> i.toString() + x + y + v }

idea/testData/intentions/specifyTypeExplicitly/destructuringInLambda.kt.after

@@ -0,0 +1,3 @@
+data class A(val x: String, val y: String)
+fun foo(a: A, block: (Int, A, String) -> String): String = block(1, a, "#")
+fun bb() = foo(A("O", "K")) { i: Int, (x, y): A, v: String -> i.toString() + x + y + v }

idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java

@@ -13867,6 +13867,12 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
             doTest(fileName);
         }
 
+        @TestMetadata("destructuringInLambda.kt")
+        public void testDestructuringInLambda() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/specifyTypeExplicitly/destructuringInLambda.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("enumType.kt")
         public void testEnumType() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/specifyTypeExplicitly/enumType.kt");