Matthew Flatt ca6c67be68 fix unsafe-immutable-hash-... on hash table from read ... When `read` parses a literal hash table, it inserts an placeholder just in case it's needed for cycles. The `unsafe-immutable-hash-...` operations in some cases did not detect and remove the placeholder. Closes #1376 Merge to v6.6		2016-07-15 06:23:20 -06:00
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collects	edit: make object/c-helpers private (#1374)	2016-07-12 16:16:42 -04:00
src	fix unsafe-immutable-hash-... on hash table from read	2016-07-15 06:23:20 -06:00
.gitignore	internal hooks to build "Racket.exe" without "libracket3m.dll"	2015-03-28 09:50:01 -06:00