K1/K2: add a test to fix state of KT-55168

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java

@@ -37882,6 +37882,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
                 KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithStdLib/builderInference"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
             }
 
+            @Test
+            @TestMetadata("buildListRemoveAddInBranches.kt")
+            public void testBuildListRemoveAddInBranches() throws Exception {
+                runTest("compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.kt");
+            }
+
             @Test
             @TestMetadata("buildListToUpperBound.kt")
             public void testBuildListToUpperBound() throws Exception {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java

@@ -37882,6 +37882,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
                 KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithStdLib/builderInference"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
             }
 
+            @Test
+            @TestMetadata("buildListRemoveAddInBranches.kt")
+            public void testBuildListRemoveAddInBranches() throws Exception {
+                runTest("compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.kt");
+            }
+
             @Test
             @TestMetadata("buildListToUpperBound.kt")
             public void testBuildListToUpperBound() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java

@@ -37882,6 +37882,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                 KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithStdLib/builderInference"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
             }
 
+            @Test
+            @TestMetadata("buildListRemoveAddInBranches.kt")
+            public void testBuildListRemoveAddInBranches() throws Exception {
+                runTest("compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.kt");
+            }
+
             @Test
             @TestMetadata("buildListToUpperBound.kt")
             public void testBuildListToUpperBound() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java

@@ -37996,6 +37996,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                 KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithStdLib/builderInference"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
             }
 
+            @Test
+            @TestMetadata("buildListRemoveAddInBranches.kt")
+            public void testBuildListRemoveAddInBranches() throws Exception {
+                runTest("compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.kt");
+            }
+
             @Test
             @TestMetadata("buildListToUpperBound.kt")
             public void testBuildListToUpperBound() throws Exception {

compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.fir.kt

@@ -0,0 +1,8 @@
+// ISSUE: KT-55168
+fun foo(arg: Boolean) = buildList {
+    if (arg) {
+        removeLast()
+    } else {
+        add(42)
+    }
+}

compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.kt

@@ -0,0 +1,8 @@
+// ISSUE: KT-55168
+fun foo(arg: Boolean) = buildList {
+    if (arg) <!TYPE_MISMATCH!>{
+        <!TYPE_MISMATCH!>removeLast()<!>
+    }<!> else {
+        add(42)
+    }
+}

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java

@@ -39610,6 +39610,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                 KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithStdLib/builderInference"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
             }
 
+            @Test
+            @TestMetadata("buildListRemoveAddInBranches.kt")
+            public void testBuildListRemoveAddInBranches() throws Exception {
+                runTest("compiler/testData/diagnostics/testsWithStdLib/builderInference/buildListRemoveAddInBranches.kt");
+            }
+
             @Test
             @TestMetadata("buildListToUpperBound.kt")
             public void testBuildListToUpperBound() throws Exception {