FIR: Add test for three receivers

compiler/fir/resolve/testData/resolve/expresssions/invoke/threeReceivers.kt

@@ -0,0 +1,17 @@
+
+
+class Bar {
+    fun FooBar.invoke(): Bar = this
+}
+
+class Buz
+
+class FooBar
+
+class Foo {
+    val Buz.foobar: Bar get() = Bar()
+
+    fun FooBar.chk(buz: Buz) {
+        buz.foobar()
+    }
+}

compiler/fir/resolve/testData/resolve/expresssions/invoke/threeReceivers.txt

@@ -0,0 +1,30 @@
+FILE: threeReceivers.kt
+    public final class Bar {
+        public constructor(): super<R|kotlin/Any|>()
+
+        public final function invoke R|FooBar|.(): R|Bar| {
+            return@@@invoke this#
+        }
+
+    }
+    public final class Buz {
+        public constructor(): super<R|kotlin/Any|>()
+
+    }
+    public final class FooBar {
+        public constructor(): super<R|kotlin/Any|>()
+
+    }
+    public final class Foo {
+        public constructor(): super<R|kotlin/Any|>()
+
+        public final property foobar R|Buz|.(val): R|Bar|
+            public get(): R|Bar| {
+                return R|/Bar.Bar|()
+            }
+
+        public final function chk R|FooBar|.(buz: R|Buz|): R|kotlin/Unit| {
+            R|<local>/buz|.R|/Foo.foobar|.R|/Bar.invoke|()
+        }
+
+    }

compiler/fir/resolve/tests/org/jetbrains/kotlin/fir/FirResolveTestCaseGenerated.java

@@ -205,6 +205,11 @@ public class FirResolveTestCaseGenerated extends AbstractFirResolveTestCase {
             public void testFarInvokeExtension() throws Exception {
                 runTest("compiler/fir/resolve/testData/resolve/expresssions/invoke/farInvokeExtension.kt");
             }
+
+            @TestMetadata("threeReceivers.kt")
+            public void testThreeReceivers() throws Exception {
+                runTest("compiler/fir/resolve/testData/resolve/expresssions/invoke/threeReceivers.kt");
+            }
         }
     }