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3 Commits

Author SHA1 Message Date
Slava Pestov
3ab5b6fa19 IRGen/Runtime: Remove parent field from type metadata 
We no longer need this for anything, so remove it from metadata
altogether. This simplifies logic for emitting type metadata and
makes type metadata smaller.

We still pass the parent metadata pointer to type constructors;
removing that is a separate change.
 2017-09-25 15:45:17 -07:00
John McCall
4e48bc0ff7 Cache type-metadata layouts instead of using scanners everywhere. NFC. 
Also counts as incremental work towards metadata resilience.
 2017-08-03 04:13:53 -04:00
John McCall
003bd81b86 Rename FooMetadataLayout to FooMetadataVisitor. NFC. 
The *Layout namespace is more fitting for a structure that actually
holds information about the layout.
 2017-08-03 02:04:14 -04:00