re PR preprocessor/20907 (long comments throw off line numbers)

	PR preprocessor/20907
	* gcc.dg/cpp/very-long-comment.c: New test.

Co-Authored-By: Devang Patel <dpatel@apple.com>

From-SVN: r98669

gcc/testsuite/ChangeLog

+2005-04-24  Per Bothner  <per@bothner.com>
+	    Devang Patel  <dpatel@apple.com>
+
+	PR preprocessor/20907
+	* gcc.dg/cpp/very-long-comment.c: New test.
+
 2005-04-24  Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>
 
 	PR fortran/20059

gcc/testsuite/gcc.dg/cpp/very-long-comment.c

+/*
+This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment. This is a really long comment.
+ */
+/* This testcase for PR 20907 is a bit finicky about the placement of
+   comment so avoid editing the text above here. */
+/* { dg-options "-Wall" } */
+/* { dg-do compile } */
+#warning test warning /* { dg-warning "test warning" } */
+#include <stdio.h>
+int main()
+{
+  printf("This is line %d\n", __LINE__);
+  return 0;
+}