'Specify explicit type' action refactoring

idea/testData/quickfix/typeAddition/afterAmbiguousFunctionReturnType.kt

@@ -0,0 +1,10 @@
+// "Specify return type explicitly" "true"
+package a
+
+trait A {}
+
+trait B {}
+
+class C {
+    fun property(): B<caret> = object : B, A {}
+}

idea/testData/quickfix/typeAddition/afterAmbiguousPropertyReturnType.kt

@@ -0,0 +1,10 @@
+// "Specify type explicitly" "true"
+package a
+
+trait A {}
+
+trait B {}
+
+class C {
+    val property: B<caret> = object : B, A {}
+}

idea/testData/quickfix/typeAddition/beforeAmbiguousFunctionReturnType.kt

@@ -0,0 +1,10 @@
+// "Specify return type explicitly" "true"
+package a
+
+trait A {}
+
+trait B {}
+
+class C {
+    fun <caret>property() = object : B, A {}
+}

idea/testData/quickfix/typeAddition/beforeAmbiguousPropertyReturnType.kt

@@ -0,0 +1,10 @@
+// "Specify type explicitly" "true"
+package a
+
+trait A {}
+
+trait B {}
+
+class C {
+    val <caret>property = object : B, A {}
+}