Add test for obsolete issue

#KT-26345 Obsolete

compiler/fir/fir2ir/tests/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java

@@ -12399,6 +12399,11 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/inference/kt10822.kt");
         }
 
+        @TestMetadata("kt26345.kt")
+        public void testKt26345() throws Exception {
+            runTest("compiler/testData/codegen/box/inference/kt26345.kt");
+        }
+
         @TestMetadata("kt32429.kt")
         public void testKt32429() throws Exception {
             runTest("compiler/testData/codegen/box/inference/kt32429.kt");

compiler/testData/codegen/box/inference/kt26345.kt

@@ -0,0 +1,20 @@
+// TARGET_BACKEND: JVM
+// FULL_JDK
+// WITH_RUNTIME
+// JVM_TARGET: 1.8
+
+import java.util.stream.Collectors
+import java.util.function.Function
+
+fun box(): String {
+    val m = listOf("OK", "OK")
+        .stream()
+        .collect(
+            Collectors.groupingBy(
+                Function.identity(),
+                Collectors.counting()
+            )
+        )
+    if (m["OK"] != 2L) return "fail: ${m["OK"]}"
+    return "OK"
+}

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -13624,6 +13624,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/inference/kt10822.kt");
         }
 
+        @TestMetadata("kt26345.kt")
+        public void testKt26345() throws Exception {
+            runTest("compiler/testData/codegen/box/inference/kt26345.kt");
+        }
+
         @TestMetadata("kt32429.kt")
         public void testKt32429() throws Exception {
             runTest("compiler/testData/codegen/box/inference/kt32429.kt");

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -13624,6 +13624,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/inference/kt10822.kt");
         }
 
+        @TestMetadata("kt26345.kt")
+        public void testKt26345() throws Exception {
+            runTest("compiler/testData/codegen/box/inference/kt26345.kt");
+        }
+
         @TestMetadata("kt32429.kt")
         public void testKt32429() throws Exception {
             runTest("compiler/testData/codegen/box/inference/kt32429.kt");

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -12399,6 +12399,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/inference/kt10822.kt");
         }
 
+        @TestMetadata("kt26345.kt")
+        public void testKt26345() throws Exception {
+            runTest("compiler/testData/codegen/box/inference/kt26345.kt");
+        }
+
         @TestMetadata("kt32429.kt")
         public void testKt32429() throws Exception {
             runTest("compiler/testData/codegen/box/inference/kt32429.kt");