Alexey Samsonov 4b8de11c81 [Sanitizer] Introduce SanitizerMetadata class. ...

It is responsible for generating metadata consumed by sanitizer instrumentation
passes in the backend. Move several methods from CodeGenModule to SanitizerMetadata.
For now the class is stateless, but soon it won't be the case.

Instead of creating globals providing source-level information to ASan, we will create
metadata nodes/strings which will be turned into actual global variables in the
backend (if needed).

No functionality change.

llvm-svn: 214564

2014-08-01 21:35:28 +00:00

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