[FIR] Fix CANNOT_BE_IMPORTED for java static methods/variables

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

@@ -11645,6 +11645,12 @@ public class FirOldFrontendDiagnosticsTestGenerated extends AbstractFirDiagnosti
                 runTest("compiler/testData/diagnostics/tests/imports/ImportResolutionOrder.kt");
             }
 
+            @Test
+            @TestMetadata("ImportStaticFunctionWithNonStaticSibling.kt")
+            public void testImportStaticFunctionWithNonStaticSibling() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/imports/ImportStaticFunctionWithNonStaticSibling.kt");
+            }
+
             @Test
             @TestMetadata("ImportTwoTimes.kt")
             public void testImportTwoTimes() throws Exception {

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

@@ -11645,6 +11645,12 @@ public class FirOldFrontendDiagnosticsWithLightTreeTestGenerated extends Abstrac
                 runTest("compiler/testData/diagnostics/tests/imports/ImportResolutionOrder.kt");
             }
 
+            @Test
+            @TestMetadata("ImportStaticFunctionWithNonStaticSibling.kt")
+            public void testImportStaticFunctionWithNonStaticSibling() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/imports/ImportStaticFunctionWithNonStaticSibling.kt");
+            }
+
             @Test
             @TestMetadata("ImportTwoTimes.kt")
             public void testImportTwoTimes() throws Exception {

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/declaration/FirImportsChecker.kt

@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.fir.resolve.symbolProvider
 import org.jetbrains.kotlin.fir.scopes.impl.declaredMemberScope
 import org.jetbrains.kotlin.fir.symbols.impl.FirRegularClassSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirTypeAliasSymbol
+import org.jetbrains.kotlin.fir.symbols.impl.isStatic
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.types.expressions.OperatorConventions
@@ -56,11 +57,8 @@ object FirImportsChecker : FirFileChecker() {
         if (classId != null) {
             val classFir = classId.resolveToClass(context) ?: return
             if (classFir.classKind.isSingleton) return
-
-            val illegalImport = classFir.hasFunctionOrProperty(context, importedName) {
-                it is FirSimpleFunction && !it.isStatic || it is FirProperty
-            }
-            if (illegalImport) {
+            
+            if (!classFir.canBeImported(context, importedName)) {
                 reporter.reportOn(import.source, FirErrors.CANNOT_BE_IMPORTED, importedName, context)
             }
         } else {
@@ -148,26 +146,25 @@ object FirImportsChecker : FirFileChecker() {
         return result
     }
 
-    private fun FirRegularClass.hasFunctionOrProperty(
+    private fun FirRegularClass.canBeImported(
         context: CheckerContext,
-        name: Name,
-        predicate: (FirDeclaration) -> Boolean
+        name: Name
     ): Boolean {
-        var result = false
+        var hasStatic = false
+        var hasIllegal = false
         val scope = context.session.declaredMemberScope(this)
         scope.processFunctionsByName(name) { sym ->
-            if (!result) {
-                result = predicate(sym.fir)
-            }
+            if (sym.isStatic) hasStatic = true
+            else hasIllegal = true
         }
-        if (result) return true
+        if (hasStatic) return true
+        if (hasIllegal) return false
 
         scope.processPropertiesByName(name) { sym ->
-            if (!result) {
-                result = predicate(sym.fir)
-            }
+            if (sym.isStatic) hasStatic = true
+            else hasIllegal = true
         }
 
-        return result
+        return hasStatic || !hasIllegal
     }
 }

compiler/testData/diagnostics/tests/imports/ImportStaticFunctionWithNonStaticSibling.kt

@@ -0,0 +1,18 @@
+// FIR_IDENTICAL
+//FILE:a/Foo.java
+package a;
+
+public class Foo {
+    public void bar() {
+
+    }
+
+    public static void bar(String arg) {
+
+    }
+}
+
+//FILE:test.kt
+package b
+
+import a.Foo.bar

compiler/testData/diagnostics/tests/imports/ImportStaticFunctionWithNonStaticSibling.txt

@@ -0,0 +1,15 @@
+package
+
+package a {
+
+    public open class Foo {
+        public constructor Foo()
+        public open fun bar(): kotlin.Unit
+        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+        // Static members
+        public open fun bar(/*0*/ arg: kotlin.String!): kotlin.Unit
+    }
+}

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

@@ -11651,6 +11651,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                 runTest("compiler/testData/diagnostics/tests/imports/ImportResolutionOrder.kt");
             }
 
+            @Test
+            @TestMetadata("ImportStaticFunctionWithNonStaticSibling.kt")
+            public void testImportStaticFunctionWithNonStaticSibling() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/imports/ImportStaticFunctionWithNonStaticSibling.kt");
+            }
+
             @Test
             @TestMetadata("ImportTwoTimes.kt")
             public void testImportTwoTimes() throws Exception {

idea/idea-frontend-fir/idea-fir-low-level-api/tests/org/jetbrains/kotlin/idea/fir/low/level/api/diagnostic/compiler/based/DiagnosisCompilerTestFE10TestdataTestGenerated.java

@@ -10152,6 +10152,11 @@ public class DiagnosisCompilerTestFE10TestdataTestGenerated extends AbstractDiag
                 runTest("compiler/testData/diagnostics/tests/imports/ImportResolutionOrder.kt");
             }
 
+            @TestMetadata("ImportStaticFunctionWithNonStaticSibling.kt")
+            public void testImportStaticFunctionWithNonStaticSibling() throws Exception {
+                runTest("compiler/testData/diagnostics/tests/imports/ImportStaticFunctionWithNonStaticSibling.kt");
+            }
+
             @TestMetadata("ImportTwoTimes.kt")
             public void testImportTwoTimes() throws Exception {
                 runTest("compiler/testData/diagnostics/tests/imports/ImportTwoTimes.kt");