catch up with scan-build (213235)

[László Nagy]

diff --git a/tools/scan-build/scan-build b/tools/scan-build/scan-build
index e66b185..585efd5 100755
--- a/tools/scan-build/scan-build
+++ b/tools/scan-build/scan-build
@@ -388,6 +388,10 @@ sub ScanFile {
     }
     elsif (/<!-- BUGFILE (.*) -->$/) {
       $BugFile = abs_path($1);
+      if (!defined $BugFile) {
+         # The file no longer exists: use the original path.
+         $BugFile = $1;
+      }
       UpdatePrefix($BugFile);
     }
     elsif (/<!-- BUGPATHLENGTH (.*) -->$/) {

[László Nagy]

abspath call is missing from beye. but also the fallback to filename is missing.

[László Nagy]

this is not needed, if compilation database has correct path info.