Bug #:

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- Disabled -pedantic for now (until it ignores system headers).
- Removed convertSignedWithGreaterRankThanUnsigned() and convertFloatingRankToComplexType().
The logic is now inlined in maxIntegerType and maxComplexType().
- Removed getIntegerRank/getFloatingRank from the private interface. These
are now really private helpers:-)
- Declare maxIntegerType/maxFloatingType static. maxComplexType const.
- Added an enum for the floating ranks.
- Several fixed to getIntegerRank: add Bool, Char, and a clause for enums.

llvm-svn: 39421