pragmasem.d: change stderr to eSink

Author: WalterBright

compiler/src/dmd/pragmasem.d

@@ -442,8 +442,8 @@ private bool pragmaMsgSemantic(Loc loc, Scope* sc, Expressions* args)
     if (expressionsToString(buf, sc, args, loc, "while evaluating `pragma(msg, %s)`", false))
         return false;
 
-    buf.writestring("\n");
-    fprintf(stderr, "%s", buf.extractChars);
+    auto eSink = global.errorSink;
+    eSink.message(Loc.init, "%s", buf.extractChars);
     return true;
 }
 

compiler/test/dshell/issue20444_SOURCE_DATE_EPOCH.d

@@ -16,5 +16,11 @@ void main ()
     const output = shellExpand("$OUTPUT_BASE/source_date_epoch.txt");
     run("$DMD -m$MODEL -o- -c $EXTRA_FILES/source_date_epoch.d", stdout, File(output, "wb"), env);
     const result = readText(output).filterCompilerOutput;
+    if (result != expected)
+    {
+        import core.stdc.stdio : fprintf, stderr;
+        fprintf(stderr, "result  : [%.*s]\n", cast(int)result.length, result.ptr);
+        fprintf(stderr, "expected: [%.*s]\n", cast(int)result.expected, expected.ptr);
+    }
     assert(result == expected, result);
 }