Resolve a fixed crasher

Author: DougGregor

validation-test/compiler_crashers/28816-unreachable-executed-at-swift-lib-sema-typecheckgeneric-cpp-214.swift renamed to validation-test/compiler_crashers_fixed/28816-unreachable-executed-at-swift-lib-sema-typecheckgeneric-cpp-214.swift

@@ -5,6 +5,6 @@
 // See https://swift.org/LICENSE.txt for license information
 // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 
-// RUN: not --crash %target-swift-frontend %s -emit-ir
+// RUN: not %target-swift-frontend %s -emit-ir
 protocol b{{}{}class a{{}class A}{}typealias a
 init(t:Self.a.a.a