Merge #21543: build: Enable safe warnings for msvc builds

7c543bc build: Enable safe warnings for msvc builds (Hennadii Stepanov)

Pull request description:

  Disabling of some specific warnings no longer needed.

ACKs for top commit:
  MarcoFalke:
    ACK 7c543bc if green
  practicalswift:
    ACK 7c543bc if green: compiler warnings are good, compiler safety warnings are great
  sipsorcery:
    tACK 7c543bc.

Tree-SHA512: a8253a5a0ccc22b8622ae66efae77a163c54bbd6dbd7e28b043ad4eb474b2c8e5c7b22d3870b15a2b9b91bade0a5ae5bfc5ee765d132dc32ddbbe690fb0146d9

Author: fanquake

build_msvc/common.init.vcxproj

@@ -97,7 +97,7 @@
       <WarningLevel>Level3</WarningLevel>
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <AdditionalOptions>/utf-8 /Zc:__cplusplus /std:c++17 %(AdditionalOptions)</AdditionalOptions>
-      <DisableSpecificWarnings>4018;4221;4244;4267;4334;4715;4805;4834</DisableSpecificWarnings>
+      <DisableSpecificWarnings>4018;4244;4267;4334;4715;4805;4834</DisableSpecificWarnings>
       <TreatWarningAsError>true</TreatWarningAsError>
       <PreprocessorDefinitions>_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;_SILENCE_CXX17_OLD_ALLOCATOR_MEMBERS_DEPRECATION_WARNING;ZMQ_STATIC;NOMINMAX;WIN32;HAVE_CONFIG_H;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_CONSOLE;_WIN32_WINNT=0x0601;_WIN32_IE=0x0501;WIN32_LEAN_AND_MEAN;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>..\..\src;..\..\src\univalue\include;..\..\src\secp256k1\include;..\..\src\leveldb\include;..\..\src\leveldb\helpers\memenv;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

build_msvc/libleveldb/libleveldb.vcxproj

@@ -51,7 +51,7 @@
   <ItemDefinitionGroup>
      <ClCompile>
        <PreprocessorDefinitions>HAVE_CRC32C=0;HAVE_SNAPPY=0;__STDC_LIMIT_MACROS;LEVELDB_IS_BIG_ENDIAN=0;_UNICODE;UNICODE;_CRT_NONSTDC_NO_DEPRECATE;LEVELDB_PLATFORM_WINDOWS;LEVELDB_ATOMIC_PRESENT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-       <DisableSpecificWarnings>4244;4267;4312;4722;</DisableSpecificWarnings>
+       <DisableSpecificWarnings>4244;4267</DisableSpecificWarnings>
        <AdditionalIncludeDirectories>..\..\src\leveldb;..\..\src\leveldb\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
      </ClCompile>
   </ItemDefinitionGroup>