[clang][NFC] Improve comments in C++ DR test suite

[Endilll]

Previously, we've been mentioning tests that were placed in their own files in corresponding drNNxx.cpp file. This patch makes sure we do this consistently, and improves upon existing practice by specifying the name of the file test is placed in.

[Endilll]

This PR is created to check it against CI

[llvmbot]

@llvm/pr-subscribers-clang

Author: Vlad Serebrennikov (Endilll)

Changes

Previously, we've been mentioning tests that were placed in their own files in corresponding drNNxx.cpp file. This patch makes sure we do this consistently, and improves upon existing practice by specifying the name of the file test is placed in.

---

Full diff: https://github.com/llvm/llvm-project/pull/77670.diff

4 Files Affected:

• (modified) clang/test/CXX/drs/dr17xx.cpp (+6)
• (modified) clang/test/CXX/drs/dr1xx.cpp (+2-2)
• (modified) clang/test/CXX/drs/dr23xx.cpp (+2)
• (modified) clang/test/CXX/drs/dr4xx.cpp (+1-1)

diff --git a/clang/test/CXX/drs/dr17xx.cpp b/clang/test/CXX/drs/dr17xx.cpp
index 0c44fb231ce51a..885ed00ace0f57 100644
--- a/clang/test/CXX/drs/dr17xx.cpp
+++ b/clang/test/CXX/drs/dr17xx.cpp
@@ -89,6 +89,8 @@ S s(q); // #dr1736-s
 #endif
 }
 
+// dr1748 is in dr1748.cpp
+
 namespace dr1753 { // dr1753: 11
   typedef int T;
   struct A { typedef int T; };
@@ -159,6 +161,8 @@ namespace dr1762 { // dr1762: 14
 #endif
 }
 
+// dr1772 is in dr177x.cpp
+
 namespace dr1778 { // dr1778: 9
   // Superseded by P1286R2.
 #if __cplusplus >= 201103L
@@ -174,6 +178,8 @@ namespace dr1778 { // dr1778: 9
 #endif
 }
 
+// dr1779 is in dr177x.cpp
+
 namespace dr1794 { // dr1794: yes
                    // NB: dup 1710
 #if __cplusplus >= 201103L
diff --git a/clang/test/CXX/drs/dr1xx.cpp b/clang/test/CXX/drs/dr1xx.cpp
index 064ecace59067a..064b69411f0b5f 100644
--- a/clang/test/CXX/drs/dr1xx.cpp
+++ b/clang/test/CXX/drs/dr1xx.cpp
@@ -283,7 +283,7 @@ namespace dr116 { // dr116: yes
 }
 
 // dr117: na
-// dr118 is in its own file.
+// dr118 is in dr118.cpp
 // dr119: na
 // dr120: na
 
@@ -789,7 +789,7 @@ namespace dr155 { // dr155: dup 632
   // expected-warning@-1 {{braces around scalar initializer}}
 }
 
-// dr158 is in its own file.
+// dr158 is in dr158.cpp
 
 namespace dr159 { // dr159: 3.5
   namespace X { void f(); }
diff --git a/clang/test/CXX/drs/dr23xx.cpp b/clang/test/CXX/drs/dr23xx.cpp
index 9ced61d2aae30d..d2f4e7652ab568 100644
--- a/clang/test/CXX/drs/dr23xx.cpp
+++ b/clang/test/CXX/drs/dr23xx.cpp
@@ -213,6 +213,8 @@ namespace dr2387 { // dr2387: 9
 #endif
 }
 
+// dr2390 is in dr2390.cpp
+
 namespace dr2394 { // dr2394: 15
 
 struct A {};
diff --git a/clang/test/CXX/drs/dr4xx.cpp b/clang/test/CXX/drs/dr4xx.cpp
index fd5c842c108571..fa90764df9b03b 100644
--- a/clang/test/CXX/drs/dr4xx.cpp
+++ b/clang/test/CXX/drs/dr4xx.cpp
@@ -282,7 +282,7 @@ namespace dr410 { // dr410: no
   // expected-note@#dr410-z {{declared private here}}
 }
 
-// dr412 is in its own file.
+// dr412 is in dr412.cpp
 
 namespace dr413 { // dr413: yes
   struct S {