third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/ruby/ext/google/protobuf_c/upb.h

 // Amalgamated source file
 /*
 ** Defs are upb's internal representation of the constructs that can appear
 ** in a .proto file:
 **
 ** - upb::MessageDef (upb_msgdef): describes a "message" construct.
 ** - upb::FieldDef (upb_fielddef): describes a message field.
 ** - upb::FileDef (upb_filedef): describes a .proto file and its defs.
 ** - upb::EnumDef (upb_enumdef): describes an enum.
 ** - upb::OneofDef (upb_oneofdef): describes a oneof.
@@ skipping 37 matching lines @@
 ** (strtable) hash tables.
 **
 ** The table uses chained scatter with Brent's variation (inspired by the Lua
 ** implementation of hash tables).  The hash function for strings is Austin
 ** Appleby's "MurmurHash."
 **
 ** The inttable uses uintptr_t as its key, which guarantees it can be used to
 ** store pointers or integers of at least 32 bits (upb isn't really useful on
 ** systems where sizeof(void*) < 4).
 **
-** The table must be homogenous (all values of the same type).  In debug
+** The table must be homogeneous (all values of the same type).  In debug
 ** mode, we check this on insert and lookup.
 */
 
 #ifndef UPB_TABLE_H_
 #define UPB_TABLE_H_
 
 #include <assert.h>
 #include <stdint.h>
 #include <string.h>
 /*
@@ skipping 8491 matching lines @@
   const Handlers* h = upb_json_printer_newhandlers(
       md, preserve_proto_fieldnames, &h);
   return reffed_ptr<const Handlers>(h, &h);
 }
 }  /* namespace json */
 }  /* namespace upb */
 
 #endif
 
 #endif  /* UPB_JSON_TYPED_PRINTER_H_ */