Regenerate XDR with new generator version (#672)

Makefile

@@ -25,7 +25,7 @@ XDR_FILES_NEXT= \
  Stellar-contract-config-setting.x
 XDR_FILES_LOCAL_NEXT=$(addprefix xdr/next/,$(XDR_FILES_NEXT))
 
-XDRGEN_COMMIT=master
+XDRGEN_COMMIT=8d303b1
 DTSXDR_COMMIT=master
 
 all: generate

src/generated/next_generated.js

@@ -2100,9 +2100,9 @@ var types = XDR.config((xdr) => {
  // TimePoint closeTime; // network close time
  //
  // // upgrades to apply to the previous ledger (usually empty)
- // // this is a vector of encoded 'LedgerUpgrade' so that nodes can drop
+ // // this is a vector of encoded "LedgerUpgrade" so that nodes can drop
  // // unknown steps during consensus if needed.
- // // see notes below on 'LedgerUpgrade' for more detail
+ // // see notes below on "LedgerUpgrade" for more detail
  // // max size is dictated by number of upgrade types (+ room for future)
  // UpgradeType upgrades<6>;
  //
@@ -9089,7 +9089,7 @@ var types = XDR.config((xdr) => {
  ["scSpecTypeResult", "result"],
  ["scSpecTypeVec", "vec"],
  ["scSpecTypeMap", "map"],
- ["scSpecTypeSet", "set"],
+ ["scSpecTypeSet", "set_"],
  ["scSpecTypeTuple", "tuple"],
  ["scSpecTypeBytesN", "bytesN"],
  ["scSpecTypeUdt", "udt"],
@@ -9099,7 +9099,7 @@ var types = XDR.config((xdr) => {
  result: xdr.lookup("ScSpecTypeResult"),
  vec: xdr.lookup("ScSpecTypeVec"),
  map: xdr.lookup("ScSpecTypeMap"),
- set: xdr.lookup("ScSpecTypeSet"),
+ set_: xdr.lookup("ScSpecTypeSet"),
  tuple: xdr.lookup("ScSpecTypeTuple"),
  bytesN: xdr.lookup("ScSpecTypeBytesN"),
  udt: xdr.lookup("ScSpecTypeUdt"),