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Andrzej Kotulski b86af1e5d1 Fix type information about reference types in CFGs ... Summary: public Two cases were not handled properly so far: 1. Declaration of a reference variable missed reference bit in type 2. Parameters to a function expecting T& had type T. The way to distinguish reference types from value types is to look whether parameter is type 'T rvalue' or type 'T lvalue' (xvalue probably as well) Unfortunately, we can't just say 'T lvalue' = 'T&' because it would break a lot of things in our frontend. However, we know that when parameter to a function call has type 'T lvalue', it has to be 'T&' type. Same applies when init_expression type is lvalue. So, the solution is to add wrapper function that looks at results of `instruction` function and expected expression type. Then if it's lvalue, wrap the type in reference. Do this wrapping magic only when we know that lvalue mean reference type. The rest of the changes is to make frontend tests pass - since we use different fields in the AST, some of them were incorrectly set before and no one noticed. Reviewed By: cristianoc Differential Revision: D2549991 fb-gh-sync-id: 067f5d5		10 years ago
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builtin	Remove variable resolution and use pointers to declarations instead	10 years ago
keywords	Refactor C++ frontend tests	10 years ago
literals	Refactor C++ frontend tests	10 years ago
methods	Add support for C++ this expression	10 years ago
namespace	Refactor C++ frontend tests	10 years ago
reference	Fix type information about reference types in CFGs	10 years ago
types	Remove variable resolution and use pointers to declarations instead	10 years ago