</p>

<pre class="ebnf">
InterfaceType      = "interface" "{" { ( MethodSpec | InterfaceTypeName ) ";" } "}" .
MethodSpec         = MethodName Signature .
MethodName         = identifier .
InterfaceTypeName  = TypeName .
</pre>

<p>
An interface type may specify methods <i>explicitly</i> through method specifications,

        override val diagnosticClass get() = ReservedMemberFromInterfaceInsideValueClass::class
        val interfaceName: String
        val methodName: String
    }

    interface TypeArgumentOnTypedValueClassEquals : KtFirDiagnostic<KtTypeReference> {
        override val diagnosticClass get() = TypeArgumentOnTypedValueClassEquals::class
    }

internal class ReservedMemberFromInterfaceInsideValueClassImpl(
    override val interfaceName: String,
    override val methodName: String,
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtClass>(firDiagnostic, token), KtFirDiagnostic.ReservedMemberFromInterfaceInsideValueClass