2/2 Implement deprecation for use-site '@get:' target

^KT-15470 Fixed
Review: https://jetbrains.team/p/kt/reviews/9250

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDataClassConverters.kt

@@ -925,6 +925,13 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirErrors.INAPPLICABLE_TARGET_ON_PROPERTY_WARNING) { firDiagnostic ->
+        InapplicableTargetOnPropertyWarningImpl(
+            firDiagnostic.a,
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
     add(FirErrors.INAPPLICABLE_TARGET_PROPERTY_IMMUTABLE) { firDiagnostic ->
         InapplicableTargetPropertyImmutableImpl(
             firDiagnostic.a,

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnostics.kt

@@ -672,6 +672,11 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         abstract val useSiteDescription: String
     }
 
+    abstract class InapplicableTargetOnPropertyWarning : KtFirDiagnostic<KtAnnotationEntry>() {
+        override val diagnosticClass get() = InapplicableTargetOnPropertyWarning::class
+        abstract val useSiteDescription: String
+    }
+
     abstract class InapplicableTargetPropertyImmutable : KtFirDiagnostic<KtAnnotationEntry>() {
         override val diagnosticClass get() = InapplicableTargetPropertyImmutable::class
         abstract val useSiteDescription: String

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnosticsImpl.kt

@@ -804,6 +804,12 @@ internal class InapplicableTargetOnPropertyImpl(
     override val token: KtLifetimeToken,
 ) : KtFirDiagnostic.InapplicableTargetOnProperty(), KtAbstractFirDiagnostic<KtAnnotationEntry>
 
+internal class InapplicableTargetOnPropertyWarningImpl(
+    override val useSiteDescription: String,
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.InapplicableTargetOnPropertyWarning(), KtAbstractFirDiagnostic<KtAnnotationEntry>
+
 internal class InapplicableTargetPropertyImmutableImpl(
     override val useSiteDescription: String,
     override val firDiagnostic: KtPsiDiagnostic,