[Analysis API] KTIJ-24610 Ignore qualifiers with fake source in KtFirImportOptimizer

Such qualifiers can appear for extensions imported from objects

^KTIJ-24610 Fixed

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirImportOptimizer.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.analysis.api.fir.components
 
+import org.jetbrains.kotlin.KtRealSourceElementKind
 import org.jetbrains.kotlin.analysis.api.components.KtImportOptimizer
 import org.jetbrains.kotlin.analysis.api.components.KtImportOptimizerResult
 import org.jetbrains.kotlin.analysis.api.fir.getCandidateSymbols
@@ -370,6 +371,8 @@ private sealed interface TypeQualifier {
 
     companion object {
         fun createFor(qualifier: FirResolvedQualifier): TypeQualifier? {
+            if (qualifier.source?.kind !is KtRealSourceElementKind) return null
+
             val wholeClassId = qualifier.classId ?: return null
             val psi = qualifier.psi as? KtExpression ?: return null
 

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/components/importOptimizer/FirIdeNormalAnalysisSourceModuleAnalysisApiImportOptimizerTestGenerated.java

@@ -46,6 +46,12 @@ public class FirIdeNormalAnalysisSourceModuleAnalysisApiImportOptimizerTestGener
         KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/components/importOptimizer/analyseImports"), Pattern.compile("^([^.]+)\\.kt$"), null, true);
     }
 
+    @Test
+    @TestMetadata("unsedObjectWithExtensionFromObject.kt")
+    public void testUnsedObjectWithExtensionFromObject() throws Exception {
+        runTest("analysis/analysis-api/testData/components/importOptimizer/analyseImports/unsedObjectWithExtensionFromObject.kt");
+    }
+
     @Test
     @TestMetadata("unusedAliasedTypeImport.kt")
     public void testUnusedAliasedTypeImport() throws Exception {

analysis/analysis-api-standalone/tests-gen/org/jetbrains/kotlin/analysis/api/standalone/fir/test/cases/generated/cases/components/importOptimizer/FirStandaloneNormalAnalysisSourceModuleAnalysisApiImportOptimizerTestGenerated.java

@@ -46,6 +46,12 @@ public class FirStandaloneNormalAnalysisSourceModuleAnalysisApiImportOptimizerTe
         KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/components/importOptimizer/analyseImports"), Pattern.compile("^([^.]+)\\.kt$"), null, true);
     }
 
+    @Test
+    @TestMetadata("unsedObjectWithExtensionFromObject.kt")
+    public void testUnsedObjectWithExtensionFromObject() throws Exception {
+        runTest("analysis/analysis-api/testData/components/importOptimizer/analyseImports/unsedObjectWithExtensionFromObject.kt");
+    }
+
     @Test
     @TestMetadata("unusedAliasedTypeImport.kt")
     public void testUnusedAliasedTypeImport() throws Exception {

analysis/analysis-api/testData/components/importOptimizer/analyseImports/unsedObjectWithExtensionFromObject.imports

@@ -0,0 +1 @@
+dependency.Bar.Companion

analysis/analysis-api/testData/components/importOptimizer/analyseImports/unsedObjectWithExtensionFromObject.kt

@@ -0,0 +1,16 @@
+// FILE: main.kt
+import dependency.Bar.Companion.minutes
+import dependency.Bar.Companion
+
+fun test() {
+    10.minutes
+}
+
+// FILE: dependency.kt
+package dependency
+
+class Bar {
+    companion object {
+        val Int.minutes: Int get() = this
+    }
+}