/in/foo.cc:1:17: error: 'z' is not a class template
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                 ^
/in/foo.cc:1:67: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                   ^
/in/foo.cc:1:71: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                       ^
/in/foo.cc:1:74: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                          ^
/in/foo.cc:1:79: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                               ^
/in/foo.cc:1:81: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                 ^
/in/foo.cc:1:83: error: 'v' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                   ^
/in/foo.cc:1:85: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                     ^
/in/foo.cc:1:88: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                        ^
/in/foo.cc:1:92: error: invalid use of incomplete type 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                            ^
/in/foo.cc:1:8: note: forward declaration of 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
        ^
/in/foo.cc:1:79: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                               ^
/in/foo.cc:1:88: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                        ^
/in/foo.cc:1:92: error: invalid use of incomplete type 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                            ^
/in/foo.cc:1:8: note: forward declaration of 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
        ^
/in/foo.cc:1:71: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                       ^
/in/foo.cc:1:79: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                               ^
/in/foo.cc:1:81: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                 ^
/in/foo.cc:1:83: error: 'v' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                   ^
/in/foo.cc:1:85: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                     ^
/in/foo.cc:1:88: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                        ^
/in/foo.cc:1:92: error: invalid use of incomplete type 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                            ^
/in/foo.cc:1:8: note: forward declaration of 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
        ^
/in/foo.cc:1:79: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                               ^
/in/foo.cc:1:88: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                        ^
/in/foo.cc:1:92: error: invalid use of incomplete type 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                            ^
/in/foo.cc:1:8: note: forward declaration of 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
        ^
/in/foo.cc:1:67: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                   ^
/in/foo.cc:1:71: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                       ^
/in/foo.cc:1:74: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                          ^
/in/foo.cc:1:79: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                               ^
/in/foo.cc:1:81: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                 ^
/in/foo.cc:1:83: error: 'v' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                   ^
/in/foo.cc:1:85: error: 'y' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                     ^
/in/foo.cc:1:88: error: 'w' was not declared in this scope
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                        ^
/in/foo.cc:1:92: error: invalid use of incomplete type 'struct x'
 struct x struct z<x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(x(y,x(y><y*,x(y*w>v<y*,w,x{}
                                                                                            ^
/in/foo.cc