K2: add test for KT-56520, case (7), qualifier receivers (2.1)

This commit covers object vs companion member vs static member case
in situation with only one companion in the scope.
K1 reports UNRESOLVED_REFERENCE here, probably due to ambiguity.
About K2, while resolving Some.foo it first tries to resolve Some
as a "general" variable access, and gets only some2/Some
because it has a companion. Then it tries to resolve Some as a qualifier,
but here we have an ambiguity, so finally Some with companion is preferred.

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

@@ -44797,6 +44797,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
                     runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierForStaticCase.kt");
                 }
 
+                @Test
+                @TestMetadata("qualifierStaticObjectOrCompanionMemberCase.kt")
+                public void testQualifierStaticObjectOrCompanionMemberCase() throws Exception {
+                    runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.kt");
+                }
+
                 @Test
                 @TestMetadata("typeCase.kt")
                 public void testTypeCase() throws Exception {

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

@@ -44797,6 +44797,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
                     runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierForStaticCase.kt");
                 }
 
+                @Test
+                @TestMetadata("qualifierStaticObjectOrCompanionMemberCase.kt")
+                public void testQualifierStaticObjectOrCompanionMemberCase() throws Exception {
+                    runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.kt");
+                }
+
                 @Test
                 @TestMetadata("typeCase.kt")
                 public void testTypeCase() throws Exception {

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

@@ -42675,6 +42675,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                     runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierForStaticCase.kt");
                 }
 
+                @Test
+                @TestMetadata("qualifierStaticObjectOrCompanionMemberCase.kt")
+                public void testQualifierStaticObjectOrCompanionMemberCase() throws Exception {
+                    runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.kt");
+                }
+
                 @Test
                 @TestMetadata("typeCase.kt")
                 public void testTypeCase() throws Exception {

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

@@ -42795,6 +42795,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                     runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierForStaticCase.kt");
                 }
 
+                @Test
+                @TestMetadata("qualifierStaticObjectOrCompanionMemberCase.kt")
+                public void testQualifierStaticObjectOrCompanionMemberCase() throws Exception {
+                    runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.kt");
+                }
+
                 @Test
                 @TestMetadata("typeCase.kt")
                 public void testTypeCase() throws Exception {

compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.fir.kt

@@ -0,0 +1,34 @@
+// ISSUE: KT-56520 (case 7, object vs companion member vs static member, one companion in scope)
+// FIR_DUMP
+
+// FILE: some/Some.kt
+package some
+
+class Some {
+    object foo {} // (1)
+
+    // companion object {}
+}
+
+// FILE: some2/Some.kt
+package some2
+
+class Some {
+    companion object {
+        val foo = "2" // (2)
+    }
+}
+
+// FILE: some3/Some.java
+package some3;
+
+public class Some {
+    public static int foo = 3; // (3)
+}
+
+// FILE: main.kt
+import some.*
+import some2.*
+import some3.*
+
+fun test() = Some.foo

compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.fir.txt

@@ -0,0 +1,39 @@
+FILE: Some.kt
+    package some
+
+    public final class Some : R|kotlin/Any| {
+        public constructor(): R|some/Some| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final object foo : R|kotlin/Any| {
+            private constructor(): R|some/Some.foo| {
+                super<R|kotlin/Any|>()
+            }
+
+        }
+
+    }
+FILE: Some.kt
+    package some2
+
+    public final class Some : R|kotlin/Any| {
+        public constructor(): R|some2/Some| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final companion object Companion : R|kotlin/Any| {
+            private constructor(): R|some2/Some.Companion| {
+                super<R|kotlin/Any|>()
+            }
+
+            public final val foo: R|kotlin/String| = String(2)
+                public get(): R|kotlin/String|
+
+        }
+
+    }
+FILE: main.kt
+    public final fun test(): R|kotlin/String| {
+        ^test Q|some2/Some|.R|some2/Some.Companion.foo|
+    }

compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.kt

@@ -0,0 +1,34 @@
+// ISSUE: KT-56520 (case 7, object vs companion member vs static member, one companion in scope)
+// FIR_DUMP
+
+// FILE: some/Some.kt
+package some
+
+class Some {
+    object foo {} // (1)
+
+    // companion object {}
+}
+
+// FILE: some2/Some.kt
+package some2
+
+class Some {
+    companion object {
+        val foo = "2" // (2)
+    }
+}
+
+// FILE: some3/Some.java
+package some3;
+
+public class Some {
+    public static int foo = 3; // (3)
+}
+
+// FILE: main.kt
+import some.*
+import some2.*
+import some3.*
+
+fun test() = <!UNRESOLVED_REFERENCE!>Some<!>.<!DEBUG_INFO_MISSING_UNRESOLVED!>foo<!>

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

@@ -44855,6 +44855,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                     runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierForStaticCase.kt");
                 }
 
+                @Test
+                @TestMetadata("qualifierStaticObjectOrCompanionMemberCase.kt")
+                public void testQualifierStaticObjectOrCompanionMemberCase() throws Exception {
+                    runTest("compiler/testData/diagnostics/testsWithStdLib/resolve/ambiguousTypeReferences/qualifierStaticObjectOrCompanionMemberCase.kt");
+                }
+
                 @Test
                 @TestMetadata("typeCase.kt")
                 public void testTypeCase() throws Exception {