[inline asm] dot operator while using imm generates wrong ir + asm - clang part

Inline asm dot operator while using imm generates wrong ir and asm
This is the test for the llvm changes committed in revision 306300

This also fixes bugzilla 32987:
https://bugs.llvm.org//show_bug.cgi?id=32987

The llvm part of the review that contains the test can be found here:
https://reviews.llvm.org/D33039

commit on behald of zizhar

Differential Revision:
https://reviews.llvm.org/D33040

llvm-svn: 306301