/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c: In function ‘test_quadratic’:
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:22:6: note: rdiv_expr at range 21:6-22:14
      (-b + sqrt (b * b - 4 * a * c))                                                                                                            
      └──────────────────────────────                                                                                                            
      / (2 * a));                                                                                                                                
      ▲───────┘                                                                                                                                  
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:10: note: minus_expr at range 21:6-21:36
      (-b + sqrt (b * b - 4 * a * c))                                                                                                              
      ────▲──────────────────────────                                                                                                              
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:12: note: call_expr at range 21:12-21:35
      (-b + sqrt (b * b - 4 * a * c))                                                                                                              
            ▲───────────────────────                                                                                                               
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:24: note: minus_expr at range 21:18-21:34
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                  ──────▲──────────                                                                                                                 
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:20: note: mult_expr at range 21:18-21:22 
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                  ──▲──                                                                                                                             
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:18: note: parm_decl at range 21:18-21:18 
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                  ▲                                                                                                                                 
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:22: note: parm_decl at range 21:22-21:22 
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                      ▲                                                                                                                             
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:32: note: mult_expr at range 21:26-21:34 
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                          ──────▲──                                                                                                                 
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:28: note: mult_expr at range 21:26-21:30 
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                          ──▲──                                                                                                                     
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:26: note: float_expr at range 21:26-21:26
      (-b + sqrt (b * b - 4 * a * c))                                                                                                               
                          ▲                                                                                                                         
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:26: note: integer_cst at range 21:26-21:26
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:30: note: parm_decl at range 21:30-21:30  
      (-b + sqrt (b * b - 4 * a * c))                                                                                                                
                              ▲                                                                                                                      
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:34: note: parm_decl at range 21:34-21:34  
      (-b + sqrt (b * b - 4 * a * c))                                                                                                                
                                  ▲                                                                                                                  
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:21:8: note: parm_decl at range 21:8-21:8     
      (-b + sqrt (b * b - 4 * a * c))                                                                                                                
        ▲                                                                                                                                            
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:22:11: note: mult_expr at range 22:8-22:14   
      / (2 * a));                                                                                                                                    
        ───▲───                                                                                                                                      
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:22:9: note: float_expr at range 22:9-22:9    
      / (2 * a));                                                                                                                                    
         ▲                                                                                                                                           
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:22:9: note: integer_cst at range 22:9-22:9   
/home/david/coding-3/gcc-git-rich-errors/src/gcc/testsuite/gcc.dg/plugin/diagnostic-test-show-trees-1.c:22:13: note: parm_decl at range 22:13-22:13  
      / (2 * a));                                                                                                                                    
             ▲