yasm: merge fixes from upstream and remove warning suppression on win

third_party/yasm/README.chromium

 Name: yasm
 URL: http://www.tortall.net/projects/yasm/
 Version: 1.1.0
 License: 2-clause or 3-clause BSD licensed, with the exception of bitvect, which is triple-licensed under the Artistic license, GPL, and LGPL
 License File: source/patched-yasm/COPYING
 License Android Compatible: yes
 Security Critical: no
 
 With these patches merged:
 * https://github.com/yasm/yasm/commit/a2cbb10ee1b90b73647667ac849c74d65761d412
 * https://github.com/yasm/yasm/commit/01ab853e68ef8aeded716d6f5b34895200f66a51
 * https://github.com/yasm/yasm/commit/82fafa7b5619e702c8681c959ade0746498e3cbc
 * https://github.com/yasm/yasm/commit/2bd66514b6b100887c19d8598da38347b3cff40e
 * https://github.com/yasm/yasm/commit/ab19547382660d81e0b4a0232dccb38f44c52a36
+* https://github.com/yasm/yasm/commit/9728322335cba96500861ef766b1546d096e5600
 
 
 See also the yasm.gyp file for a description of the yasm build process.
 
 Instructions for recreating the yasm.gyp file.
   1) Get a clean version of the yasm source tree. The clean tree can be found
      at:
 
        src/third_party/yasm/source/yasm
 
@@ skipping 102 matching lines @@
      Yasm uses python scripts to generate the assembly code description
      files in C++. Make sure to get these put into the gyp file properly as
      well.  An example is gen_x86_insn.py for x86 assembly.
 
      Note that at least the gen_x86_insn.py script suffers from the same
      problem as genmacro in that it outputs to the current directory by
      default.  The yasm.gyp build patches this file before invoking it to
      allow specifying an output directory.
 
  10) If all that's is finished, attempt to build....and cross your fingers.