This one is more obscure. It helps suppressing the following error while
compiling:
```
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.h:33:6: error: elaborated-type-specifier for a scoped enum must not use the 'class' keyword [-Werror]
33 | enum class Instruction: uint8_t;
| ~~~~ ^~~~~
| -----
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.h:33:23: error: found ':' in nested-name-specifier, expected '::'
33 | enum class Instruction: uint8_t;
| ^
| ::
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.h:33:12: error: 'Instruction' has not been declared
33 | enum class Instruction: uint8_t;
| ^~~~~~~~~~~
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.h:101:24: error: 'solidity::evmasm::Instruction' has not been declared
101 | bool hasOpcode(evmasm::Instruction _opcode) const;
| ^~~~~~
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.cpp:29:6: error: no declaration matches 'bool solidity::langutil::EVMVersion::hasOpcode(solidity::evmasm::Instruction) const'
29 | bool EVMVersion::hasOpcode(Instruction _opcode) const
| ^~~~~~~~~~
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.h:101:14: note: candidate is: 'bool solidity::langutil::EVMVersion::hasOpcode(int) const'
101 | bool hasOpcode(evmasm::Instruction _opcode) const;
| ^~~~~~~~~
/builddir/build/BUILD/solidity-0.8.18/liblangutil/EVMVersion.h:43:7: note: 'class solidity::langutil::EVMVersion' defined here
43 | class EVMVersion:
| ^~~~~~~~~~
cc1plus: all warnings being treated as errors
```
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Deprecates `block.difficulty` and disallow `difficulty()` in inline assembly for EVM versions >= paris.
The change is due to the renaming introduced by EIP-4399 (see: https://eips.ethereum.org/EIPS/eip-4399).
Introduces `block.prevrandao` in Solidity and `prevrandao()` in inline assembly for EVM versions >= paris.
Co-authored-by: Alex Beregszaszi <alex@rtfs.hu>
Co-authored-by: Daniel <daniel@ekpyron.org>
Co-authored-by: matheusaaguiar <95899911+matheusaaguiar@users.noreply.github.com>
Co-authored-by: Nikola Matić <nikola.matic@ethereum.org>
