Address ABI issues introduced with CXCursor_CXXAddrspaceCastExpr
Revert values in CXCursorKind as they were before
CXCursor_CXXAddrspaceCastExpr was introduced in a6a237f2046a ([OpenCL]
Added addrspace_cast operator in C++ mode., 2020-05-18).
Insert CXCursor_CXXAddrspaceCastExpr after the last expression in
CXCursorKind using the next available value.
Reviewed By: akyrtzi, svenvh
Differential Revision: https://reviews.llvm.org/D90385
(cherry picked from commit bbdbd020d2c2f315ed1545b23c23ec6ff1abc022)