feat(grammar): update to new grammar 0.8.18

update outdated dependencies

.mocharc.json

@@ -1,5 +1,5 @@
 {
   "timeout": false,
-  "spec": "**/*.spec.ts",
+  "spec": "test/**/*.spec.ts",
   "require": "ts-node/register"
 }

grammar/SolidityLexer.g4

@@ -9,10 +9,9 @@ ReservedKeywords:
 	| 'partial' | 'promise' | 'reference' | 'relocatable' | 'sealed' | 'sizeof' | 'static'
 	| 'supports' | 'switch' | 'typedef' | 'typeof' | 'var';
 
-Pragma: 'pragma' -> pushMode(PragmaMode);
 Abstract: 'abstract';
-Anonymous: 'anonymous';
 Address: 'address';
+Anonymous: 'anonymous';
 As: 'as';
 Assembly: 'assembly' -> pushMode(AssemblyBlockMode);
 Bool: 'bool';
@@ -30,13 +29,11 @@ Else: 'else';
 Emit: 'emit';
 Enum: 'enum';
 Error: 'error'; // not a real keyword
-Revert: 'revert'; // not a real keyword
 Event: 'event';
 External: 'external';
 Fallback: 'fallback';
 False: 'false';
 Fixed: 'fixed' | ('fixed' [1-9][0-9]* 'x' [1-9][0-9]*);
-From: 'from'; // not a real keyword
 /**
  * Bytes types of fixed length.
  */
@@ -46,6 +43,7 @@ FixedBytes:
 	'bytes17' | 'bytes18' | 'bytes19' | 'bytes20' | 'bytes21' | 'bytes22' | 'bytes23' | 'bytes24' |
 	'bytes25' | 'bytes26' | 'bytes27' | 'bytes28' | 'bytes29' | 'bytes30' | 'bytes31' | 'bytes32';
 For: 'for';
+From: 'from'; // not a real keyword
 Function: 'function';
 Global: 'global'; // not a real keyword
 Hex: 'hex';
@@ -67,12 +65,14 @@ New: 'new';
 NumberUnit: 'wei' | 'gwei' | 'ether' | 'seconds' | 'minutes' | 'hours' | 'days' | 'weeks' | 'years';
 Override: 'override';
 Payable: 'payable';
+Pragma: 'pragma' -> pushMode(PragmaMode);
 Private: 'private';
 Public: 'public';
 Pure: 'pure';
 Receive: 'receive';
 Return: 'return';
 Returns: 'returns';
+Revert: 'revert'; // not a real keyword
 /**
  * Sized signed integer types.
  * int is an alias of int256.
@@ -291,8 +291,8 @@ YulEVMBuiltin:
 	| 'returndatacopy' | 'extcodehash' | 'create' | 'create2' | 'call' | 'callcode'
 	| 'delegatecall' | 'staticcall' | 'return' | 'revert' | 'selfdestruct' | 'invalid'
 	| 'log0' | 'log1' | 'log2' | 'log3' | 'log4' | 'chainid' | 'origin' | 'gasprice'
-	| 'blockhash' | 'coinbase' | 'timestamp' | 'number' | 'difficulty' | 'gaslimit'
-	| 'basefee';
+	| 'blockhash' | 'coinbase' | 'timestamp' | 'number' | 'difficulty' | 'prevrandao'
+	| 'gaslimit' | 'basefee';
 
 YulLBrace: '{' -> pushMode(YulMode);
 YulRBrace: '}' -> popMode;

grammar/SolidityParser.g4

@@ -312,7 +312,7 @@ errorDefinition:
 	Semicolon;
 
 /**
- * Using directive to bind library functions and free functions to types.
+ * Using directive to attach library functions and free functions to types.
  * Can occur within contracts and libraries and at the file level.
  */
 usingDirective: Using (identifierPath | (LBrace identifierPath (Comma identifierPath)* RBrace)) For (Mul | typeName) Global? Semicolon;
@@ -504,7 +504,7 @@ variableDeclarationTuple:
 variableDeclarationStatement: ((variableDeclaration (Assign expression)?) | (variableDeclarationTuple Assign expression)) Semicolon;
 expressionStatement: expression Semicolon;
 
-mappingType: Mapping LParen key=mappingKeyType DoubleArrow value=typeName RParen;
+mappingType: Mapping LParen key=mappingKeyType name=identifier? DoubleArrow value=typeName name=identifier? RParen;
 /**
  * Only elementary types or user defined types are viable as mapping keys.
  */

lib/antlr/generated/SolidityLexer.tokens

@@ -1,58 +1,58 @@
 ReservedKeywords=1
-Pragma=2
-Abstract=3
+Abstract=2
+Address=3
 Anonymous=4
-Address=5
-As=6
-Assembly=7
-Bool=8
-Break=9
-Bytes=10
-Calldata=11
-Catch=12
-Constant=13
-Constructor=14
-Continue=15
-Contract=16
-Delete=17
-Do=18
-Else=19
-Emit=20
-Enum=21
-Error=22
-Revert=23
-Event=24
-External=25
-Fallback=26
-False=27
-Fixed=28
+As=5
+Assembly=6
+Bool=7
+Break=8
+Bytes=9
+Calldata=10
+Catch=11
+Constant=12
+Constructor=13
+Continue=14
+Contract=15
+Delete=16
+Do=17
+Else=18
+Emit=19
+Enum=20
+Error=21
+Event=22
+External=23
+Fallback=24
+False=25
+Fixed=26
+FixedBytes=27
+For=28
 From=29
-FixedBytes=30
-For=31
-Function=32
-Global=33
-Hex=34
-If=35
-Immutable=36
-Import=37
-Indexed=38
-Interface=39
-Internal=40
-Is=41
-Library=42
-Mapping=43
-Memory=44
-Modifier=45
-New=46
-NumberUnit=47
-Override=48
-Payable=49
-Private=50
-Public=51
-Pure=52
-Receive=53
-Return=54
-Returns=55
+Function=30
+Global=31
+Hex=32
+If=33
+Immutable=34
+Import=35
+Indexed=36
+Interface=37
+Internal=38
+Is=39
+Library=40
+Mapping=41
+Memory=42
+Modifier=43
+New=44
+NumberUnit=45
+Override=46
+Payable=47
+Pragma=48
+Private=49
+Public=50
+Pure=51
+Receive=52
+Return=53
+Returns=54
+Revert=55
 SignedIntegerType=56
 Storage=57
 String=58
@@ -172,50 +172,50 @@ PragmaSemicolon=171
 PragmaWS=172
 PragmaCOMMENT=173
 PragmaLINE_COMMENT=174
-'pragma'=2
-'abstract'=3
+'abstract'=2
+'address'=3
 'anonymous'=4
-'address'=5
-'as'=6
-'assembly'=7
-'bool'=8
-'bytes'=10
-'calldata'=11
-'catch'=12
-'constant'=13
-'constructor'=14
-'contract'=16
-'delete'=17
-'do'=18
-'else'=19
-'emit'=20
-'enum'=21
-'error'=22
-'revert'=23
-'event'=24
-'external'=25
-'fallback'=26
+'as'=5
+'assembly'=6
+'bool'=7
+'bytes'=9
+'calldata'=10
+'catch'=11
+'constant'=12
+'constructor'=13
+'contract'=15
+'delete'=16
+'do'=17
+'else'=18
+'emit'=19
+'enum'=20
+'error'=21
+'event'=22
+'external'=23
+'fallback'=24
 'from'=29
-'global'=33
-'immutable'=36
-'import'=37
-'indexed'=38
-'interface'=39
-'internal'=40
-'is'=41
-'library'=42
-'mapping'=43
-'memory'=44
-'modifier'=45
-'new'=46
-'override'=48
-'payable'=49
-'private'=50
-'public'=51
-'pure'=52
-'receive'=53
-'return'=54
-'returns'=55
+'global'=31
+'immutable'=34
+'import'=35
+'indexed'=36
+'interface'=37
+'internal'=38
+'is'=39
+'library'=40
+'mapping'=41
+'memory'=42
+'modifier'=43
+'new'=44
+'override'=46
+'payable'=47
+'pragma'=48
+'private'=49
+'public'=50
+'pure'=51
+'receive'=52
+'return'=53
+'returns'=54
+'revert'=55
 'storage'=57
 'string'=58
 'struct'=59