[FIR] Implement FirInterfaceDefaultMethodCallChecker

Add diagnostics: INTERFACE_STATIC_METHOD_CALL_FROM_JAVA6_TARGET,
INTERFACE_CANT_CALL_DEFAULT_METHOD_VIA_SUPER,
DEFAULT_METHOD_CALL_FROM_JAVA6_TARGET

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

@@ -361,6 +361,12 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirJvmErrors.INTERFACE_CANT_CALL_DEFAULT_METHOD_VIA_SUPER) { firDiagnostic ->
+        InterfaceCantCallDefaultMethodViaSuperImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
     add(FirErrors.NOT_A_SUPERTYPE) { firDiagnostic ->
         NotASupertypeImpl(
             firDiagnostic as FirPsiDiagnostic,
@@ -3820,4 +3826,28 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirJvmErrors.DEFAULT_METHOD_CALL_FROM_JAVA6_TARGET.errorFactory) { firDiagnostic ->
+        DefaultMethodCallFromJava6TargetErrorImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJvmErrors.DEFAULT_METHOD_CALL_FROM_JAVA6_TARGET.warningFactory) { firDiagnostic ->
+        DefaultMethodCallFromJava6TargetWarningImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJvmErrors.INTERFACE_STATIC_METHOD_CALL_FROM_JAVA6_TARGET.errorFactory) { firDiagnostic ->
+        InterfaceStaticMethodCallFromJava6TargetErrorImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJvmErrors.INTERFACE_STATIC_METHOD_CALL_FROM_JAVA6_TARGET.warningFactory) { firDiagnostic ->
+        InterfaceStaticMethodCallFromJava6TargetWarningImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
 }

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

@@ -281,6 +281,10 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         abstract val name: String
     }
 
+    abstract class InterfaceCantCallDefaultMethodViaSuper : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = InterfaceCantCallDefaultMethodViaSuper::class
+    }
+
     abstract class NotASupertype : KtFirDiagnostic<PsiElement>() {
         override val diagnosticClass get() = NotASupertype::class
     }
@@ -2656,4 +2660,20 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = JvmSyntheticOnDelegate::class
     }
 
+    abstract class DefaultMethodCallFromJava6TargetError : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = DefaultMethodCallFromJava6TargetError::class
+    }
+
+    abstract class DefaultMethodCallFromJava6TargetWarning : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = DefaultMethodCallFromJava6TargetWarning::class
+    }
+
+    abstract class InterfaceStaticMethodCallFromJava6TargetError : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = InterfaceStaticMethodCallFromJava6TargetError::class
+    }
+
+    abstract class InterfaceStaticMethodCallFromJava6TargetWarning : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = InterfaceStaticMethodCallFromJava6TargetWarning::class
+    }
+
 }

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

@@ -417,6 +417,13 @@ internal class SuperCallWithDefaultParametersImpl(
     override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
 }
 
+internal class InterfaceCantCallDefaultMethodViaSuperImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.InterfaceCantCallDefaultMethodViaSuper(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
 internal class NotASupertypeImpl(
     firDiagnostic: FirPsiDiagnostic,
     override val token: ValidityToken,
@@ -4319,3 +4326,31 @@ internal class JvmSyntheticOnDelegateImpl(
     override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
 }
 
+internal class DefaultMethodCallFromJava6TargetErrorImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.DefaultMethodCallFromJava6TargetError(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
+internal class DefaultMethodCallFromJava6TargetWarningImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.DefaultMethodCallFromJava6TargetWarning(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
+internal class InterfaceStaticMethodCallFromJava6TargetErrorImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.InterfaceStaticMethodCallFromJava6TargetError(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
+internal class InterfaceStaticMethodCallFromJava6TargetWarningImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.InterfaceStaticMethodCallFromJava6TargetWarning(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+