Roll third_party/SwiftShader 8e8e1d0dd729..dd48b7e2d06e (2 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/8e8e1d0dd729..dd48b7e2d06e

git log 8e8e1d0dd729..dd48b7e2d06e --date=short --first-parent --format='%ad %ae %s'
2020-02-05 amaiorano@google.com Fix MSAN LLVM jit false positives
2020-02-05 bclayton@google.com Disable new gcc 9 warning [init-list-lifetime]

Created with:
  gclient setdep -r third_party/SwiftShader@dd48b7e2d0

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-angle-autoroll
Please CC cnorthrop@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Bug: None
Tbr: cnorthrop@google.com
Change-Id: I75bcfe8bc85d98104835ab9740c3c3f7c267e9fb
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2041077
Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -182,7 +182,7 @@ deps = {
   },
 
   'third_party/SwiftShader': {
-    'url': '{swiftshader_git}/SwiftShader@8e8e1d0dd7292440b803b95bc0832589520f784d',
+    'url': '{swiftshader_git}/SwiftShader@dd48b7e2d06e74e1d20da5f43224b4ae99873e64',
     'condition': 'not build_with_chromium',
   },