[PATCH] D48159: [clangd] Implement hover for "auto" and "decltype"

[Marc-Andre Laperle via Phabricator via cfe-commits]

malaperle created this revision.
Herald added subscribers: cfe-commits, jkorous, MaskRay, ioeric, ilya-biryukov.

This allows hovering on keywords that refer to deduced types.
This should cover most useful cases. Not covered:

- auto template parameters: Since this can be instantiated with many types,

it would not be practical to show the types.

- Structured binding: This could be done later to show multiple deduced types

in the hover.

- auto:: (part of concepts): Outside the scope of this patch.

Signed-off-by: Marc-Andre Laperle <marc-andre.laperle at ericsson.com>


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D48159

Files:
  clangd/XRefs.cpp
  unittests/clangd/TestTU.cpp
  unittests/clangd/TestTU.h
  unittests/clangd/XRefsTests.cpp

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