[procname] Change type Procname.c to store record instead of tuple

Summary: That tuple has 3 elements already, there may be 4th element coming.

Reviewed By: mbouaziz

Differential Revision: D4721342

fbshipit-source-id: cba44ef

infer/src/IR/Typ.re

@@ -319,7 +319,8 @@ let module Procname = {
   [@@deriving compare];
 
   /** Type of c procedure names. */
-  type c = (string, option string, template_spec_info) [@@deriving compare];
+  type c = {name: string, mangled: option string, template_args: template_spec_info}
+  [@@deriving compare];
   type objc_cpp_method_kind =
     | CPPMethod (option string) /** with mangling */
     | CPPConstructor (option string, bool) /** with mangling + is it constexpr? */
@@ -403,12 +404,12 @@ let module Procname = {
     | None => (None, package_classname)
     };
   let split_typename typename => split_classname (Typename.name typename);
-  let from_string_c_fun (s: string) => C (s, None, NoTemplate);
-  let c (plain: string) (mangled: string) (template_args: template_spec_info) => (
-    plain,
-    Some mangled,
+  let c (name: string) (mangled: string) (template_args: template_spec_info) => {
+    name,
+    mangled: Some mangled,
     template_args
-  );
+  };
+  let from_string_c_fun (name: string) => C {name, mangled: None, template_args: NoTemplate};
   let java class_name return_type method_name parameters kind => {
     class_name,
     return_type,
@@ -487,7 +488,7 @@ let module Procname = {
   let get_method =
     fun
     | ObjC_Cpp name => name.method_name
-    | C (name, _, _) => name
+    | C {name} => name
     | Block name => name
     | Java j => j.method_name
     | Linters_dummy_method => "Linters_dummy_method";
@@ -690,7 +691,7 @@ let module Procname = {
     };
   let get_global_name_of_initializer =
     fun
-    | C (name, _, _) when String.is_prefix prefix::Config.clang_initializer_prefix name => {
+    | C {name} when String.is_prefix prefix::Config.clang_initializer_prefix name => {
         let prefix_len = String.length Config.clang_initializer_prefix;
         Some (String.sub name pos::prefix_len len::(String.length name - prefix_len))
       }
@@ -744,7 +745,7 @@ let module Procname = {
   let to_unique_id pn =>
     switch pn {
     | Java j => java_to_string j Verbose
-    | C (c1, c2, _) => to_readable_string (c1, c2) true
+    | C {name, mangled} => to_readable_string (name, mangled) true
     | ObjC_Cpp osig => c_method_to_string osig Verbose
     | Block name => name
     | Linters_dummy_method => "Linters_dummy_method"
@@ -754,7 +755,7 @@ let module Procname = {
   let to_string p =>
     switch p {
     | Java j => java_to_string j Non_verbose
-    | C (c1, c2, _) => to_readable_string (c1, c2) false
+    | C {name, mangled} => to_readable_string (name, mangled) false
     | ObjC_Cpp osig => c_method_to_string osig Non_verbose
     | Block name => name
     | Linters_dummy_method => to_unique_id p
@@ -764,7 +765,7 @@ let module Procname = {
   let to_simplified_string withclass::withclass=false p =>
     switch p {
     | Java j => java_to_string withclass::withclass j Simple
-    | C (c1, c2, _) => to_readable_string (c1, c2) false ^ "()"
+    | C {name, mangled} => to_readable_string (name, mangled) false ^ "()"
     | ObjC_Cpp osig => c_method_to_string osig Simple
     | Block _ => "block"
     | Linters_dummy_method => to_unique_id p
@@ -793,7 +794,7 @@ let module Procname = {
   let pp_set fmt set => Set.iter (fun pname => F.fprintf fmt "%a " pp pname) set;
   let get_qualifiers pname =>
     switch pname {
-    | C c => fst3 c |> QualifiedCppName.qualifiers_of_qual_name
+    | C {name} => QualifiedCppName.qualifiers_of_qual_name name
     | ObjC_Cpp objc_cpp =>
       List.append
         (QualifiedCppName.qualifiers_of_qual_name (Typename.name objc_cpp.class_name))
@@ -807,7 +808,8 @@ let module Procname = {
     let get_qual_name_str pname => get_qualifiers pname |> List.rev |> String.concat sep::"#";
     let proc_id =
       switch pname {
-      | C (_, c2, _) => [get_qual_name_str pname, ...Option.to_list c2] |> String.concat sep::"#"
+      | C {mangled} =>
+        [get_qual_name_str pname, ...Option.to_list mangled] |> String.concat sep::"#"
       | ObjC_Cpp objc_cpp =>
         get_qual_name_str pname ^ "#" ^ c_method_kind_verbose_str objc_cpp.kind
       | _ => to_unique_id pname