Douglas Gregor 14f232ea20 Improve our handling of the -Wunused-variable warning in templates. In ...

particular, don't complain about unused variables that have dependent
type until instantiation time, so that we can look at the type of the
variable. Moreover, only complain about unused variables that have
neither a user-declared constructor nor a non-trivial destructor.

llvm-svn: 103362

2010-05-08 23:05:03 +00:00

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