Fix a -Wmisleading-indentation false-negative

gcc/c-family/ChangeLog:

	* c-indentation.c (should_warn_for_misleading_indentation):
	Compare next_stmt_vis_column with guard_line_first_nws instead
	of with guard_line_vis_column.

gcc/testsuite/ChangeLog:

	* c-c++-common/Wmisleading-indentation.c: Augment test.

From-SVN: r228071

gcc/c-family/ChangeLog

+2015-09-24  Patrick Palka  <ppalka@gcc.gnu.org>
+
+	* c-indentation.c (should_warn_for_misleading_indentation):
+	Compare next_stmt_vis_column with guard_line_first_nws instead
+	of with guard_line_vis_column.
+
 2015-09-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
 
 	PR c/49654

gcc/c-family/c-indentation.c

@@ -464,7 +464,7 @@ should_warn_for_misleading_indentation (const token_indent_info &guard_tinfo,
 	      {
 		if (next_stmt_vis_column > guard_line_first_nws
 		    || (next_tok_type == CPP_OPEN_BRACE
-			&& next_stmt_vis_column == guard_vis_column))
+			&& next_stmt_vis_column == guard_line_first_nws))
 		  return true;
 	      }
 	  }

gcc/testsuite/ChangeLog

+2015-09-24  Patrick Palka  <ppalka@gcc.gnu.org>
+
+	* c-c++-common/Wmisleading-indentation.c: Augment test.
+
 2015-09-23  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
 	Fix small typos in the coding rule enforcement warnings.

gcc/testsuite/c-c++-common/Wmisleading-indentation.c

@@ -797,6 +797,15 @@ fn_37 (void)
        i++);
     foo (i); /* { dg-warning "statement is indented as if" } */
 
+  if (flagA)
+  {
+    foo (1);
+  }
+  else if (flagB); /* { dg-message "8: ...this 'if' clause" } */
+  { /* { dg-warning "statement is indented as if" } */
+    foo (2);
+  }
+
 #undef EMPTY
 #undef FOR_EACH
 }