Merge bitcoin/bitcoin#30794: interpreter: use int32_t instead of int type for risczero compile

bc52cda1f3c007bdf1ed00aa3011e207c7531017 fix use int32_t instead of int type for risczero compile with (-march=rv32i, -mabi=ilp32) (Simon)

Pull request description:

  When compile bitcoin by the toolchain(`riscv32-unknown-elf-g++`) from risc0 , the compiler argument is `-march=rv32i, -mabi=ilp32`, which will get the error which due to not serialize the value of type int .

  ```
  blockbody-guest:   cargo:warning=In file included from depend/bitcoin/src/hash.h:14,
  blockbody-guest:   cargo:warning=                 from depend/bitcoin/src/script/interpreter.h:9,
  blockbody-guest:   cargo:warning=                 from depend/bitcoin/src/script/interpreter.cpp:6:
  blockbody-guest:   cargo:warning=depend/bitcoin/src/serialize.h: In instantiation of 'void Serialize(Stream&, const T&) [with Stream = HashWriter; T = int]':
  blockbody-guest:   cargo:warning=depend/bitcoin/src/hash.h:144:20:   required from 'HashWriter& HashWriter::operator<<(const T&) [with T = int]'
  blockbody-guest:   cargo:warning=depend/bitcoin/src/script/interpreter.cpp:1613:12:   required from 'uint256 SignatureHash(const CScript&, const T&, unsigned int, int, const CAmount&, SigVersion, const PrecomputedTransactionData*) [with T = CTransaction; CAmount = long long int]'
  blockbody-guest:   cargo:warning=depend/bitcoin/src/script/interpreter.cpp:1664:36:   required from 'bool GenericTransactionSignatureChecker<T>::CheckECDSASignature(const std::vector<unsigned char>&, const std::vector<unsigned char>&, const CScript&, SigVersion) const [with T = CTransaction]'
  blockbody-guest:   cargo:warning=depend/bitcoin/src/script/interpreter.cpp:1785:16:   required from here
  blockbody-guest:   cargo:warning=depend/bitcoin/src/serialize.h:776:7: error: request for member 'Serialize' in 'a', which is of non-class type 'const int'
  blockbody-guest:   cargo:warning=  776 |     a.Serialize(os);
  ```

  --------------

  ### Reason

  "The toolchain from RISC Zero defines int and int32_t as different types, although they have the same width. This means that `src/compat/assumptions.h` compiles fine; however, the templated serialization code cannot accept values of type int. Fix the compilation on RISC Zero by serializing int32_t instead of int values.

  This patch will explicitly use the `int32_t` type instead of `int` to avoid errors when compiling with the risc0 toolchain. Additionally, this patch will not change any behavior on platforms where compilation was previously successful.

  Fixes #30747

ACKs for top commit:
  maflcko:
    review-only ACK bc52cda1f3c007bdf1ed00aa3011e207c7531017
  achow101:
    ACK bc52cda1f3c007bdf1ed00aa3011e207c7531017
  TheCharlatan:
    ACK bc52cda1f3c007bdf1ed00aa3011e207c7531017

Tree-SHA512: ef880e7dfa1335bf2704ab17c0f506f17390b8259755674dfcd57131736492b2f4cfc36babda6902202b7c55a7513991e21f6634b0cd9b2b03baf4f1c0f8d78b

1 files changed, 2 insertions, 2 deletions

diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index 9d0e9b5e3c..dcdddb88e9 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -1303,7 +1303,7 @@ public:
         // Serialize the nSequence
         if (nInput != nIn && (fHashSingle || fHashNone))
             // let the others update at will
-            ::Serialize(s, int{0});
+            ::Serialize(s, int32_t{0});
         else
             ::Serialize(s, txTo.vin[nInput].nSequence);
     }
@@ -1565,7 +1565,7 @@ bool SignatureHashSchnorr(uint256& hash_out, ScriptExecutionData& execdata, cons
 }
 
 template <class T>
-uint256 SignatureHash(const CScript& scriptCode, const T& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion, const PrecomputedTransactionData* cache)
+uint256 SignatureHash(const CScript& scriptCode, const T& txTo, unsigned int nIn, int32_t nHashType, const CAmount& amount, SigVersion sigversion, const PrecomputedTransactionData* cache)
 {
     assert(nIn < txTo.vin.size());