[cfe-commits] [PATCH] PR9812: _Bool != bool

[Richard Smith]

Hi,

The attached patch fixes PR9812 by splitting TST_bool into TST_bool (for
C++ bool) and TST__Bool (for C99 _Bool). They both still translate into
BuiltinType::Bool, but are now given the appropriate names in diagnostics.

One subtlety: BuiltinTypeLoc::getWrittenTypeSpec tries to convert
backwards from a BuiltinType to a TypeSpecifierType. I've arbitrarily made
this continue to produce TST_bool for BuiltinType::Bool, but this code is
actually not currently reachable: the function is only called by the AST
serialization code, and only in cases where the type cannot be bool.

OK to commit?

Richard
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