KT-61032 [FIR] Add testData for invoke on K*Function* local variables

N.B. Method references currently also implicitly have such type

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

@@ -3152,6 +3152,24 @@ public class DiagnosticCompilerTestFirTestdataTestGenerated extends AbstractDiag
                     runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invoke.kt");
                 }
 
+                @Test
+                @TestMetadata("invokeKFunction.kt")
+                public void testInvokeKFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunction.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKFunctionFromMethodReference.kt")
+                public void testInvokeKFunctionFromMethodReference() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunctionFromMethodReference.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKSuspendFunction.kt")
+                public void testInvokeKSuspendFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKSuspendFunction.kt");
+                }
+
                 @Test
                 @TestMetadata("lambda.kt")
                 public void testLambda() throws Exception {

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

@@ -3152,6 +3152,24 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFirTestDataTestGenerated
                     runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invoke.kt");
                 }
 
+                @Test
+                @TestMetadata("invokeKFunction.kt")
+                public void testInvokeKFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunction.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKFunctionFromMethodReference.kt")
+                public void testInvokeKFunctionFromMethodReference() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunctionFromMethodReference.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKSuspendFunction.kt")
+                public void testInvokeKSuspendFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKSuspendFunction.kt");
+                }
+
                 @Test
                 @TestMetadata("lambda.kt")
                 public void testLambda() throws Exception {

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunction.fir.txt

@@ -0,0 +1,5 @@
+FILE: invokeKFunction.kt
+    public final fun foo(action: R|kotlin/reflect/KFunction1<kotlin/String, kotlin/Int>|): R|kotlin/Int| {
+        lval localAction: R|kotlin/reflect/KFunction1<kotlin/String, kotlin/Int>| = R|<local>/action|
+        ^foo R|<local>/localAction|.R|SubstitutionOverride<kotlin/reflect/KFunction1.invoke: R|kotlin/Int|>|(String(hello))
+    }

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunction.kt

@@ -0,0 +1,8 @@
+// WITH_STDLIB
+import kotlin.reflect.KFunction1
+
+fun foo(action: KFunction1<String, Int>): Int {
+    val <!UNUSED_VARIABLE!>localAction<!> = action
+
+    return localAction("hello")
+}

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunctionFromMethodReference.fir.txt

@@ -0,0 +1,9 @@
+FILE: invokeKFunctionFromMethodReference.kt
+    public final fun foo(): R|kotlin/Int| {
+        local final fun action(s: R|kotlin/String|): R|kotlin/Int| {
+            ^action R|<local>/s|.R|kotlin/text/toInt|()
+        }
+
+        lval localAction: R|kotlin/reflect/KFunction1<kotlin/String, kotlin/Int>| = ::R|<local>/action|
+        ^foo R|<local>/localAction|.R|SubstitutionOverride<kotlin/reflect/KFunction1.invoke: R|kotlin/Int|>|(String(hello))
+    }

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunctionFromMethodReference.kt

@@ -0,0 +1,8 @@
+// WITH_STDLIB
+fun foo(): Int {
+    fun action(s: String): Int = s.toInt()
+
+    val <!UNUSED_VARIABLE!>localAction<!> = ::action
+
+    return localAction("hello")
+}

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKSuspendFunction.fir.txt

@@ -0,0 +1,5 @@
+FILE: invokeKSuspendFunction.kt
+    public final suspend fun foo(action: R|kotlin/reflect/KSuspendFunction1<kotlin/String, kotlin/Int>|): R|kotlin/Int| {
+        lval localAction: R|kotlin/reflect/KSuspendFunction1<kotlin/String, kotlin/Int>| = R|<local>/action|
+        ^foo R|<local>/localAction|.R|SubstitutionOverride<kotlin/reflect/KSuspendFunction1.invoke: R|kotlin/Int|>|(String(hello))
+    }

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKSuspendFunction.kt

@@ -0,0 +1,8 @@
+// WITH_STDLIB
+import kotlin.reflect.KSuspendFunction1
+
+suspend fun foo(action: KSuspendFunction1<String, Int>): Int {
+    val <!UNUSED_VARIABLE!>localAction<!> = action
+
+    return localAction("hello")
+}

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

@@ -3152,6 +3152,24 @@ public class FirLightTreeDiagnosticsTestGenerated extends AbstractFirLightTreeDi
                     runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invoke.kt");
                 }
 
+                @Test
+                @TestMetadata("invokeKFunction.kt")
+                public void testInvokeKFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunction.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKFunctionFromMethodReference.kt")
+                public void testInvokeKFunctionFromMethodReference() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunctionFromMethodReference.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKSuspendFunction.kt")
+                public void testInvokeKSuspendFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKSuspendFunction.kt");
+                }
+
                 @Test
                 @TestMetadata("lambda.kt")
                 public void testLambda() throws Exception {

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

@@ -3152,6 +3152,24 @@ public class FirPsiDiagnosticTestGenerated extends AbstractFirPsiDiagnosticTest
                     runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invoke.kt");
                 }
 
+                @Test
+                @TestMetadata("invokeKFunction.kt")
+                public void testInvokeKFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunction.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKFunctionFromMethodReference.kt")
+                public void testInvokeKFunctionFromMethodReference() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKFunctionFromMethodReference.kt");
+                }
+
+                @Test
+                @TestMetadata("invokeKSuspendFunction.kt")
+                public void testInvokeKSuspendFunction() throws Exception {
+                    runTest("compiler/fir/analysis-tests/testData/resolve/extendedCheckers/unused/invokeKSuspendFunction.kt");
+                }
+
                 @Test
                 @TestMetadata("lambda.kt")
                 public void testLambda() throws Exception {