[bug hash] Ignore line and column in lambda's name when computing bug hash

Summary: In cpp, lambda's `operator()` name includes line and column numbers which were not ignore when computing bug hash.

Reviewed By: jberdine

Differential Revision: D24649125

fbshipit-source-id: 7a235fd3e

infer/src/integration/JsonReports.ml

@@ -33,10 +33,14 @@ let compute_hash ~(severity : string) ~(bug_type : string) ~(proc_name : Procnam
   let base_filename = Filename.basename file in
   let hashable_procedure_name = Procname.hashable_name proc_name in
   let location_independent_qualifier =
-    (* Removing the line,column, and infer temporary variable (e.g., n$67) information from the
+    (* Removing the line,column, line and column in lambda's name
+       (e.g. test::lambda.cpp:10:15::operator()),
+       and infer temporary variable (e.g., n$67) information from the
        error message as well as the index of the annonymmous class to make the hash invariant
        when moving the source code in the file *)
-    Str.global_replace (Str.regexp "\\(line \\|column \\|parameter \\|\\$\\)[0-9]+") "$_" qualifier
+    Str.global_replace
+      (Str.regexp "\\(line \\|column \\|:\\|parameter \\|\\$\\)[0-9]+")
+      "$_" qualifier
   in
   Utils.better_hash
     (severity, bug_type, hashable_procedure_name, base_filename, location_independent_qualifier)