[Analysis API] fix resolution to declarations inside kotlin*. packages

`kotlin*.` packages should be always allowed.
`kotlin.` packages should be allowed if `AnalysisFlags.allowKotlinPackage` is `true`

^KT-63223 fixed

analysis/analysis-api-fe10/tests-gen/org/jetbrains/kotlin/analysis/api/fe10/test/cases/generated/cases/references/Fe10IdeNormalAnalysisSourceModuleReferenceResolveTestGenerated.java

@@ -2064,6 +2064,22 @@ public class Fe10IdeNormalAnalysisSourceModuleReferenceResolveTestGenerated exte
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^([^.]+)\\.kt$"), null, true);
+        }
+
+        @Test
+        @TestMetadata("kotlinxPackage.kt")
+        public void testKotlinxPackage() throws Exception {
+            runTest("analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.kt");
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/references/FirIdeDependentAnalysisScriptSourceModuleReferenceResolveTestGenerated.java

@@ -378,6 +378,16 @@ public class FirIdeDependentAnalysisScriptSourceModuleReferenceResolveTestGenera
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^(.+)\\.kts$"), null, true);
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/references/FirIdeDependentAnalysisSourceModuleReferenceResolveTestGenerated.java

@@ -2064,6 +2064,22 @@ public class FirIdeDependentAnalysisSourceModuleReferenceResolveTestGenerated ex
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^([^.]+)\\.kt$"), null, true);
+        }
+
+        @Test
+        @TestMetadata("kotlinxPackage.kt")
+        public void testKotlinxPackage() throws Exception {
+            runTest("analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.kt");
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/references/FirIdeNormalAnalysisLibrarySourceModuleReferenceResolveTestGenerated.java

@@ -1908,6 +1908,22 @@ public class FirIdeNormalAnalysisLibrarySourceModuleReferenceResolveTestGenerate
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^([^.]+)\\.kt$"), null, true, "withErrors");
+        }
+
+        @Test
+        @TestMetadata("kotlinxPackage.kt")
+        public void testKotlinxPackage() throws Exception {
+            runTest("analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.kt");
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/references/FirIdeNormalAnalysisScriptSourceModuleReferenceResolveTestGenerated.java

@@ -378,6 +378,16 @@ public class FirIdeNormalAnalysisScriptSourceModuleReferenceResolveTestGenerated
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^(.+)\\.kts$"), null, true);
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/references/FirIdeNormalAnalysisSourceModuleReferenceResolveTestGenerated.java

@@ -2064,6 +2064,22 @@ public class FirIdeNormalAnalysisSourceModuleReferenceResolveTestGenerated exten
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^([^.]+)\\.kt$"), null, true);
+        }
+
+        @Test
+        @TestMetadata("kotlinxPackage.kt")
+        public void testKotlinxPackage() throws Exception {
+            runTest("analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.kt");
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api-standalone/tests-gen/org/jetbrains/kotlin/analysis/api/standalone/fir/test/cases/generated/cases/references/FirStandaloneNormalAnalysisSourceModuleReferenceResolveTestGenerated.java

@@ -2064,6 +2064,22 @@ public class FirStandaloneNormalAnalysisSourceModuleReferenceResolveTestGenerate
         }
     }
 
+    @Nested
+    @TestMetadata("analysis/analysis-api/testData/referenceResolve/kotlinPackage")
+    @TestDataPath("$PROJECT_ROOT")
+    public class KotlinPackage {
+        @Test
+        public void testAllFilesPresentInKotlinPackage() throws Exception {
+            KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("analysis/analysis-api/testData/referenceResolve/kotlinPackage"), Pattern.compile("^([^.]+)\\.kt$"), null, true);
+        }
+
+        @Test
+        @TestMetadata("kotlinxPackage.kt")
+        public void testKotlinxPackage() throws Exception {
+            runTest("analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.kt");
+        }
+    }
+
     @Nested
     @TestMetadata("analysis/analysis-api/testData/referenceResolve/nestedTypes")
     @TestDataPath("$PROJECT_ROOT")

analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.kt

@@ -0,0 +1,12 @@
+// FILE: a.kt
+package kotlinx.pckg
+
+fun foo() {
+    b<caret>ar()
+}
+
+// FILE: b.kt
+package kotlinx.pckg
+
+fun bar() {
+}

analysis/analysis-api/testData/referenceResolve/kotlinPackage/kotlinxPackage.txt

@@ -0,0 +1,2 @@
+Resolved to:
+0: (in kotlinx.pckg) fun bar()

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/util/LLFirKotlinSymbolNamesProvider.kt

@@ -53,4 +53,7 @@ internal open class LLFirKotlinSymbolNamesProvider(
 }
 
 private fun FqName.isKotlinPackage(): Boolean = startsWith(StandardNames.BUILT_INS_PACKAGE_NAME)
-private fun String.isKotlinPackage(): Boolean = startsWith(StandardNames.BUILT_INS_PACKAGE_NAME.asString())
+private fun String.isKotlinPackage(): Boolean = startsWith(KOTLIN_PACKAGE_PREFIX)
+
+private const val KOTLIN_PACKAGE_PREFIX = "kotlin."
+