Cherrypick upstream r240600, r240601
Relax assertion in x86_64 byval argument handling for 32-bit pointers
Byval argument pair formation assumes that if a type is less than 8 bytes
it must be an integer and not a pointer, which is not true for x32 and NaCl.
Relax the assertion and add a test for a codegen case that triggered it.
Review URL: https://codereview.chromium.org/1211623004.
2 files changed