[test] Don't run still-crashing compiler_crashers under no-asserts builds.

Per discussion on the list. From now on, when you fix a compiler_crashers
test case, move it to compiler_crashers_fixed so that we get no-asserts and
ASan coverage.

Swift SVN r27055

validation-test/compiler_crashers_fixed/0147-swift-parser-parseexprstringliteral.swift

@@ -0,0 +1,24 @@
+// RUN: not %target-swift-frontend %s -parse
+
+// Distributed under the terms of the MIT license
+// Test case submitted to project by https://github.com/practicalswift (practicalswift)
+// Test case found by fuzzing
+
+protocol A {
+    typealias E
+}
+struct B<T : As a {
+    typealias b = b
+}
+func a<T>() {f {
+   class func i()
+}
+class d: f{  class func i {}
+func f() {
+    ({})
+}
+func prefix(with: String) -> <T>(() -> T) -> String {
+  return { g in "\(with): \(g())" }
+}
+protocol a : a {
+}