It appears this change broke all FreeBSD builders (9: gcc, 10/11: clang) for the 2.7 branch with:

==== koobs-freebsd-current (clang 3.7.x)

cc -pthread -c -fno-strict-aliasing -OPT:Olimit=0 -g -O2 -g -O0 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include  -DPy_BUILD_CORE -o Objects/typeobject.o Objects/typeobject.c
Objects/typeobject.c:2568:44: error: no member named 'hash' in 'PyStringObject'
        assert(((PyStringObject *)(name))->hash != -1);
               ~~~~~~~~~~~~~~~~~~~~~~~~~~  ^
/usr/include/assert.h:54:21: note: expanded from macro 'assert'
#define assert(e)       ((e) ? (void)0 : __assert(__func__, __FILE__, \
                          ^
1 error generated.
*** Error code 1

==== koobs-freebsd10 (clang 3.4.x)

cc -pthread -c -fno-strict-aliasing -OPT:Olimit=0 -g -O2 -g -O0 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include -fPIC -DPy_BUILD_CORE -o Objects/unicodeobject.o Objects/unicodeobject.c
--- Objects/typeobject.o ---
Objects/typeobject.c:2568:18: error: use of undeclared identifier 'PyASCIIObject'
        assert(((PyASCIIObject *)(name))->hash != -1);
                 ^
/usr/include/assert.h:54:21: note: expanded from macro 'assert'
#define assert(e)       ((e) ? (void)0 : __assert(__func__, __FILE__, \
                          ^
Objects/typeobject.c:2568:33: error: expected expression
        assert(((PyASCIIObject *)(name))->hash != -1);
                                ^
/usr/include/assert.h:54:21: note: expanded from macro 'assert'
#define assert(e)       ((e) ? (void)0 : __assert(__func__, __FILE__, \
                          ^
--- Objects/unicodectype.o ---
cc -pthread -c -fno-strict-aliasing -OPT:Olimit=0 -g -O2 -g -O0 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include -fPIC -DPy_BUILD_CORE -o Objects/unicodectype.o Objects/unicodectype.c
--- Objects/typeobject.o ---
2 errors generated.
*** [Objects/typeobject.o] Error code 1


==== koobs-freebsd9 (gcc 4.2.1 + patches)

gcc -pthread -c -fno-strict-aliasing -g -O2 -g -O0 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include  -DPy_BUILD_CORE -o Objects/unicodeobject.o Objects/unicodeobject.c
Objects/unicodeobject.c: In function 'PyUnicode_DecodeUTF7Stateful':
Objects/unicodeobject.c:1694: warning: comparison is always true due to limited range of data type
gcc -pthread -c -fno-strict-aliasing -g -O2 -g -O0 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include  -DPy_BUILD_CORE -o Objects/unicodectype.o Objects/unicodectype.c
Objects/typeobject.c: In function '_PyType_Lookup':
Objects/typeobject.c:2568: error: 'PyASCIIObject' undeclared (first use in this function)
Objects/typeobject.c:2568: error: (Each undeclared identifier is reported only once
Objects/typeobject.c:2568: error: for each function it appears in.)
Objects/typeobject.c:2568: error: expected expression before ')' token
*** [Objects/typeobject.o] Error code 1