Update grammar for .slice() feature

Author: rkalis

packages/cashc/src/grammar/CashScript.g4

@@ -114,6 +114,7 @@ expression
     | scope='tx.inputs' '[' expression ']' op=('.value' | '.lockingBytecode' | '.outpointTransactionHash' | '.outpointIndex' | '.unlockingBytecode' | '.sequenceNumber' | '.tokenCategory' | '.nftCommitment' | '.tokenAmount') # UnaryIntrospectionOp
     | expression op=('.reverse()' | '.length') # UnaryOp
     | left=expression op='.split' '(' right=expression ')' # BinaryOp
+    | element=expression '.slice' '(' start=expression ',' end=expression ')' # Slice
     | op=('!' | '-') expression # UnaryOp
     | left=expression op=('*' | '/' | '%') right=expression # BinaryOp
     | left=expression op=('+' | '-') right=expression # BinaryOp

packages/cashc/src/grammar/CashScript.interp

@@ -55,23 +55,24 @@ T__53=54
 T__54=55
 T__55=56
 T__56=57
-VersionLiteral=58
-BooleanLiteral=59
-NumberUnit=60
-NumberLiteral=61
-NumberPart=62
-ExponentPart=63
-Bytes=64
-Bound=65
-StringLiteral=66
-DateLiteral=67
-HexLiteral=68
-TxVar=69
-NullaryOp=70
-Identifier=71
-WHITESPACE=72
-COMMENT=73
-LINE_COMMENT=74
+T__57=58
+VersionLiteral=59
+BooleanLiteral=60
+NumberUnit=61
+NumberLiteral=62
+NumberPart=63
+ExponentPart=64
+Bytes=65
+Bound=66
+StringLiteral=67
+DateLiteral=68
+HexLiteral=69
+TxVar=70
+NullaryOp=71
+Identifier=72
+WHITESPACE=73
+COMMENT=74
+LINE_COMMENT=75
 'pragma'=1
 ';'=2
 'cashscript'=3
@@ -110,22 +111,23 @@ LINE_COMMENT=74
 '.reverse()'=36
 '.length'=37
 '.split'=38
-'!'=39
-'-'=40
-'*'=41
-'/'=42
-'%'=43
-'+'=44
-'=='=45
-'!='=46
-'&'=47
-'|'=48
-'&&'=49
-'||'=50
-'constant'=51
-'int'=52
-'bool'=53
-'string'=54
-'pubkey'=55
-'sig'=56
-'datasig'=57
+'.slice'=39
+'!'=40
+'-'=41
+'*'=42
+'/'=43
+'%'=44
+'+'=45
+'=='=46
+'!='=47
+'&'=48
+'|'=49
+'&&'=50
+'||'=51
+'constant'=52
+'int'=53
+'bool'=54
+'string'=55
+'pubkey'=56
+'sig'=57
+'datasig'=58

packages/cashc/src/grammar/CashScript.tokens

@@ -55,23 +55,24 @@ T__53=54
 T__54=55
 T__55=56
 T__56=57
-VersionLiteral=58
-BooleanLiteral=59
-NumberUnit=60
-NumberLiteral=61
-NumberPart=62
-ExponentPart=63
-Bytes=64
-Bound=65
-StringLiteral=66
-DateLiteral=67
-HexLiteral=68
-TxVar=69
-NullaryOp=70
-Identifier=71
-WHITESPACE=72
-COMMENT=73
-LINE_COMMENT=74
+T__57=58
+VersionLiteral=59
+BooleanLiteral=60
+NumberUnit=61
+NumberLiteral=62
+NumberPart=63
+ExponentPart=64
+Bytes=65
+Bound=66
+StringLiteral=67
+DateLiteral=68
+HexLiteral=69
+TxVar=70
+NullaryOp=71
+Identifier=72
+WHITESPACE=73
+COMMENT=74
+LINE_COMMENT=75
 'pragma'=1
 ';'=2
 'cashscript'=3
@@ -110,22 +111,23 @@ LINE_COMMENT=74
 '.reverse()'=36
 '.length'=37
 '.split'=38
-'!'=39
-'-'=40
-'*'=41
-'/'=42
-'%'=43
-'+'=44
-'=='=45
-'!='=46
-'&'=47
-'|'=48
-'&&'=49
-'||'=50
-'constant'=51
-'int'=52
-'bool'=53
-'string'=54
-'pubkey'=55
-'sig'=56
-'datasig'=57
+'.slice'=39
+'!'=40
+'-'=41
+'*'=42
+'/'=43
+'%'=44
+'+'=45
+'=='=46
+'!='=47
+'&'=48
+'|'=49
+'&&'=50
+'||'=51
+'constant'=52
+'int'=53
+'bool'=54
+'string'=55
+'pubkey'=56
+'sig'=57
+'datasig'=58