Adjust docs example to work with v0.8.0

test/contracts/AuctionRegistrar.cpp

@@ -43,7 +43,7 @@ namespace solidity::frontend::test
 namespace
 {
 static char const* registrarCode = R"DELIMITER(
-pragma solidity >=0.4.0 <0.8.0;
+pragma solidity >=0.4.0 <0.9.0;
 
 abstract contract NameRegister {
 	function addr(string memory _name) public virtual view returns (address o_owner);

test/contracts/FixedFeeRegistrar.cpp

@@ -55,7 +55,7 @@ static char const* registrarCode = R"DELIMITER(
 // @authors:
 //   Gav Wood <g@ethdev.com>
 
-pragma solidity >=0.4.0 <0.8.0;
+pragma solidity >=0.4.0 <0.9.0;
 
 abstract contract Registrar {
 	event Changed(string indexed name);

test/contracts/Wallet.cpp

@@ -56,7 +56,7 @@ static char const* walletCode = R"DELIMITER(
 // some number (specified in constructor) of the set of owners (specified in the constructor, modifiable) before the
 // interior is executed.
 
-pragma solidity >=0.4.0 <0.8.0;
+pragma solidity >=0.4.0 <0.9.0;
 
 contract multiowned {
 

test/libsolidity/semanticTests/uninitializedFunctionPointer/store2.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.0 <0.8.0;
+pragma solidity >=0.4.0 <0.9.0;
 
 contract InvalidTest {
 

test/libsolidity/semanticTests/viaYul/erc20.sol

@@ -1,4 +1,4 @@
-pragma solidity >=0.4.0 <0.8.0;
+pragma solidity >=0.4.0 <0.9.0;
 
 contract ERC20 {
     event Transfer(address indexed from, address indexed to, uint256 value);