Roll clang 278861:280106.

build/config/sanitizers/BUILD.gn

Index: build/config/sanitizers/BUILD.gn
diff --git a/build/config/sanitizers/BUILD.gn b/build/config/sanitizers/BUILD.gn
index 4b96dd446c1f3d3431ab2bc5485dfcb1e89aca05..73bafa9891c858cab0a14a595a32cf9ebf99784a 100644
--- a/build/config/sanitizers/BUILD.gn
+++ b/build/config/sanitizers/BUILD.gn
@@ -231,7 +231,14 @@ config("common_sanitizer_flags") {
   # or variable info, so we can leave that out to speed up the build.
   if (using_sanitizer) {
     assert(is_clang, "sanitizers only supported with clang")
-    cflags += [ "-gline-tables-only" ]
+    cflags += [
+      "-gline-tables-only",
+
+      # Column info in debug data confuses Visual Studio's debugger, so don't
+      # use this by default.  However, clusterfuzz needs it for good attribution
+      # of reports to CLs, so turn it on there.
+      "-gcolumn-info",
+    ]
   }
 
   # Common options for AddressSanitizer, LeakSanitizer, ThreadSanitizer,