Code fragments are just fancy string literals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201034
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``dag``
This type represents a nestable directed graph of elements.
-``code``
- This represents a big hunk of text. This is lexically distinct from string
- values because it doesn't require escaping double quotes and other common
- characters that occur in code.
-
To date, these types have been sufficient for describing things that TableGen
has been used for, but it is straight-forward to extend this list if needed.