tint: Add unary-ops to the intrinsic table

• Declare all the unary ops in the intrinsics.def file.
• Reimplement the bulk of Resolver::UnaryOp() with the IntrinsicTable.

This will simplify maintenance of the operators, and will greatly
simplify the [AbstractInt -> i32|u32] [AbstractFloat -> f32|f16] logic.

Bug: tint:1504
Change-Id: Ifc646d086fc93cfbe3f3f861b8c447178664c1f7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89028
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>

tools/src/cmd/intrinsic-gen/lexer/lexer.go

@@ -72,6 +72,8 @@ func (l *lexer) lex() error {
 			l.tok(1, tok.Modulo)
 		case '^':
 			l.tok(1, tok.Xor)
+		case '~':
+			l.tok(1, tok.Complement)
 		case '"':
 			start := l.loc
 			l.next() // Skip opening quote
@@ -105,6 +107,7 @@ func (l *lexer) lex() error {
 			case l.match("||", tok.OrOr):
 			case l.match("|", tok.Or):
 			case l.match("!=", tok.NotEqual):
+			case l.match("!", tok.Not):
 			case l.match("==", tok.Equal):
 			case l.match("=", tok.Assign):
 			case l.match("<<", tok.Shl):

tools/src/cmd/intrinsic-gen/lexer/lexer_test.go

@@ -91,6 +91,9 @@ func TestLexTokens(t *testing.T) {
 		{"|", tok.Token{Kind: tok.Or, Runes: []rune("|"), Source: tok.Source{
 			S: loc(1, 1, 0), E: loc(1, 2, 1),
 		}}},
+		{"!", tok.Token{Kind: tok.Not, Runes: []rune("!"), Source: tok.Source{
+			S: loc(1, 1, 0), E: loc(1, 2, 1),
+		}}},
 		{"!=", tok.Token{Kind: tok.NotEqual, Runes: []rune("!="), Source: tok.Source{
 			S: loc(1, 1, 0), E: loc(1, 3, 2),
 		}}},

tools/src/cmd/intrinsic-gen/tok/tok.go

@@ -32,34 +32,36 @@ const (
 	Operator     Kind = "op"
 	Type         Kind = "type"
 	Enum         Kind = "enum"
-	Colon        Kind = ":"
-	Comma        Kind = ","
-	Shl          Kind = "<<"
-	Shr          Kind = ">>"
-	Lt           Kind = "<"
-	Le           Kind = "<="
-	Gt           Kind = ">"
-	Ge           Kind = ">="
-	Lbrace       Kind = "{"
-	Rbrace       Kind = "}"
-	Ldeco        Kind = "[["
-	Rdeco        Kind = "]]"
-	Lparen       Kind = "("
-	Rparen       Kind = ")"
-	Or           Kind = "|"
-	Arrow        Kind = "->"
-	Star         Kind = "*"
-	Divide       Kind = "/"
-	Modulo       Kind = "%"
-	Xor          Kind = "^"
-	Plus         Kind = "+"
-	Minus        Kind = "-"
 	And          Kind = "&"
 	AndAnd       Kind = "&&"
-	OrOr         Kind = "||"
-	NotEqual     Kind = "!="
-	Equal        Kind = "=="
+	Arrow        Kind = "->"
 	Assign       Kind = "="
+	Colon        Kind = ":"
+	Comma        Kind = ","
+	Complement   Kind = "~"
+	Divide       Kind = "/"
+	Equal        Kind = "=="
+	Ge           Kind = ">="
+	Gt           Kind = ">"
+	Lbrace       Kind = "{"
+	Ldeco        Kind = "[["
+	Le           Kind = "<="
+	Lparen       Kind = "("
+	Lt           Kind = "<"
+	Minus        Kind = "-"
+	Modulo       Kind = "%"
+	Not          Kind = "!"
+	NotEqual     Kind = "!="
+	Or           Kind = "|"
+	OrOr         Kind = "||"
+	Plus         Kind = "+"
+	Rbrace       Kind = "}"
+	Rdeco        Kind = "]]"
+	Rparen       Kind = ")"
+	Shl          Kind = "<<"
+	Shr          Kind = ">>"
+	Star         Kind = "*"
+	Xor          Kind = "^"
 )
 
 // Invalid represents an invalid token