[test] Fix up crasher test names

Turns out my code for this has been wrong all this time and hasn't
been been including leading zeros for each hex byte.

Author: hamishknight

validation-test/IDE/crashers/0798f041dcc07b.swift renamed to validation-test/IDE/crashers/000798f041dcc07b.swift

@@ -1,5 +1,5 @@
 // {"kind":"complete","signature":"swift::IterableDeclContext::addMemberSilently(swift::Decl*, swift::Decl*, bool) const::$_0::operator()(swift::Decl*, swift::Decl*) const"}
-// RUN: not --crash %target-swift-ide-test -code-completion --code-completion-token=COMPLETE -source-filename %s
+// RUN: not --crash %target-swift-ide-test -code-completion -batch-code-completion -skip-filecheck -code-completion-diagnostics -source-filename %s
 class a {b { { [ } ] in
 #^COMPLETE^#
 }