[LL FIR] add getOrBuildFir for KtAnnotation

^KT-65780

analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotation.kt

@@ -0,0 +1,4 @@
+// LOOK_UP_FOR_ELEMENT_OF_TYPE: KtAnnotation
+// WITH_STDLIB
+
+<expr>@file:[Suppress("")]</expr>

analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotation.txt

@@ -0,0 +1,10 @@
+KT element: KtAnnotation
+FIR element: null
+FIR source kind: null
+
+FIR element rendered:
+null
+
+FIR FILE:
+FILE: [ResolvedTo(BODY_RESOLVE)] fileAnnotation.kt
+    @FILE:R|kotlin/Suppress|[Types](names = vararg(String()))

analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotationScript.kts

@@ -0,0 +1,4 @@
+// LOOK_UP_FOR_ELEMENT_OF_TYPE: KtAnnotation
+// WITH_STDLIB
+
+<expr>@file:[Suppress("")]</expr>

analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotationScript.txt

@@ -0,0 +1,13 @@
+KT element: KtAnnotation
+FIR element: null
+FIR source kind: null
+
+FIR element rendered:
+null
+
+FIR FILE:
+FILE: [ResolvedTo(BODY_RESOLVE)] fileAnnotationScript.kts
+    @FILE:R|kotlin/Suppress|[Types](names = vararg(String()))
+    context(<script>@kotlin.script.templates.standard.ScriptTemplateWithArgs)
+    SCRIPT: [ResolvedTo(RAW_FIR)] <script-fileAnnotationScript.kts>
+        [ResolvedTo(RAW_FIR)] lval args: R|kotlin/Array<kotlin/String>|

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/OutOfContentRootGetOrBuildFirTestGenerated.java

@@ -1305,6 +1305,12 @@ public class OutOfContentRootGetOrBuildFirTestGenerated extends AbstractOutOfCon
       runTest("analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/externalJavaAnnotation.kt");
     }
 
+    @Test
+    @TestMetadata("fileAnnotation.kt")
+    public void testFileAnnotation() {
+      runTest("analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotation.kt");
+    }
+
     @Test
     @TestMetadata("fileAnnotationList.kt")
     public void testFileAnnotationList() {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/ScriptGetOrBuildFirTestGenerated.java

@@ -843,6 +843,12 @@ public class ScriptGetOrBuildFirTestGenerated extends AbstractScriptGetOrBuildFi
       runTest("analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotationListScript.kts");
     }
 
+    @Test
+    @TestMetadata("fileAnnotationScript.kts")
+    public void testFileAnnotationScript() {
+      runTest("analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotationScript.kts");
+    }
+
     @Test
     @TestMetadata("function.kts")
     public void testFunction() {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/SourceGetOrBuildFirTestGenerated.java

@@ -1305,6 +1305,12 @@ public class SourceGetOrBuildFirTestGenerated extends AbstractSourceGetOrBuildFi
       runTest("analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/externalJavaAnnotation.kt");
     }
 
+    @Test
+    @TestMetadata("fileAnnotation.kt")
+    public void testFileAnnotation() {
+      runTest("analysis/low-level-api-fir/testData/getOrBuildFir/wholeDeclaration/fileAnnotation.kt");
+    }
+
     @Test
     @TestMetadata("fileAnnotationList.kt")
     public void testFileAnnotationList() {