all: remove `var` key

vlib/v/parser/assign.v

@@ -77,7 +77,7 @@ pub fn (mut p Parser) assign_expr(left ast.Expr) ast.AssignExpr {
 fn (mut p Parser) parse_assign_lhs() []ast.Ident {
 	mut idents := []ast.Ident{}
 	for {
-		is_mut := p.tok.kind == .key_mut || p.tok.kind == .key_var
+		is_mut := p.tok.kind == .key_mut
 		if is_mut {
 			p.next()
 		}

vlib/v/parser/fn.v

@@ -110,7 +110,7 @@ fn (mut p Parser) fn_decl() ast.FnDecl {
 	if p.tok.kind == .lpar {
 		p.next() // (
 		is_method = true
-		rec_mut = p.tok.kind in [.key_var, .key_mut]
+		rec_mut = p.tok.kind == .key_mut
 		if rec_mut {
 			p.next() // `mut`
 		}

vlib/v/parser/for.v

@@ -23,8 +23,8 @@ fn (mut p Parser) for_stmt() ast.Stmt {
 			pos: pos
 			is_inf: true
 		}
-	} else if p.tok.kind in [.key_mut, .key_var] {
-		p.error('`var` is not needed in for loops')
+	} else if p.tok.kind == .key_mut {
+		p.error('`mut` is not needed in for loops')
 	} else if p.peek_tok.kind in [.decl_assign, .assign, .semicolon] || p.tok.kind == .semicolon {
 		// `for i := 0; i < 10; i++ {`
 		mut init := ast.Stmt{}
@@ -76,7 +76,6 @@ fn (mut p Parser) for_stmt() ast.Stmt {
 			val_var_pos = p.tok.position()
 			key_var_name = val_var_name
 			val_var_name = p.check_name()
-			
 			if p.scope.known_var(key_var_name) {
 				p.error('redefinition of key iteration variable `$key_var_name`')
 			}

vlib/v/parser/if.v

@@ -86,7 +86,7 @@ fn (mut p Parser) match_expr() ast.MatchExpr {
 	match_first_pos := p.tok.position()
 	p.inside_match = true
 	p.check(.key_match)
-	is_mut := p.tok.kind in [.key_mut, .key_var]
+	is_mut := p.tok.kind == .key_mut
 	mut is_sum_type := false
 	if is_mut {
 		p.next()
@@ -106,8 +106,9 @@ fn (mut p Parser) match_expr() ast.MatchExpr {
 		if p.tok.kind == .key_else {
 			is_else = true
 			p.next()
-		} else if p.tok.kind == .name && !(p.tok.lit == 'C' && p.peek_tok.kind == .dot) && (p.tok.lit in table.builtin_type_names || (p.tok.lit[0].is_capital() &&
-			!p.tok.lit.is_upper()) || p.peek_tok.kind == .dot) {
+		} else if p.tok.kind == .name && !(p.tok.lit == 'C' && p.peek_tok.kind == .dot) &&
+			(p.tok.lit in table.builtin_type_names || (p.tok.lit[0].is_capital() && !p.tok.lit.is_upper()) ||
+			p.peek_tok.kind == .dot) {
 			// Sum type match
 			typ := p.parse_type()
 			exprs << ast.Type{

vlib/v/parser/parser.v

@@ -398,7 +398,7 @@ pub fn (mut p Parser) stmt() ast.Stmt {
 				pos: assert_pos
 			}
 		}
-		.key_mut, .key_static, .key_var {
+		.key_mut, .key_static {
 			return p.assign_stmt()
 		}
 		.key_for {

vlib/v/token/token.v

@@ -120,7 +120,6 @@ pub enum Kind {
 	key_pub
 	key_static
 	key_unsafe
-	key_var
 	keyword_end
 	_end_
 }
@@ -246,7 +245,6 @@ fn build_token_str() []string {
 	s[Kind.key_none] = 'none'
 	s[Kind.key_offsetof] = '__offsetof'
 	s[Kind.key_is] = 'is'
-	s[Kind.key_var] = 'var'
 	return s
 }