swift-mirror/validation-test/compiler_crashers/Parser-parseAbstractFunctionBody-1b160f.swift

// {"kind":"typecheck","signature":"swift::Parser::parseAbstractFunctionBody(swift::AbstractFunctionDecl*, swift::optionset::OptionSet<swift::Parser::ParseDeclFlags, unsigned short>)","signatureAssert":"Assertion failed: (!Flags.contains(PD_StubOnly) && \"stub-only should parse body immediately\"), function parseAbstractFunctionBody","signatureNext":"Parser::parseDeclFunc"}
// RUN: not --crash %target-swift-frontend -typecheck %s
@abi(func a {