Fix stack-stomping on 32-bit platforms
Fix stack-stomping on 32-bit platforms

Stack arrays of handles were being stored as 32-bit and indexed as
64-bit. We really need to distinguish between llvm_type_of and
llvm_storage_type_of


Former-commit-id: 3af8d1c41c86b713f117edc91a0b390448dc7100
Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide