tint: Split tables for unary and binary operators

Do the partitioning of unary and binary operators in the intrinsic table
generators, instead of searching all operators at runtime.

Will allow code to be simplified.

Bug: tint:1504
Change-Id: I67246b954e530e0542b1b67c99fb34a756cf532a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90240
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>

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

@@ -22,12 +22,13 @@ import (
 
 // Sem is the root of the semantic tree
 type Sem struct {
-	Enums        []*Enum
-	Types        []*Type
-	TypeMatchers []*TypeMatcher
-	EnumMatchers []*EnumMatcher
-	Builtins     []*Intrinsic
-	Operators    []*Intrinsic
+	Enums           []*Enum
+	Types           []*Type
+	TypeMatchers    []*TypeMatcher
+	EnumMatchers    []*EnumMatcher
+	Builtins        []*Intrinsic
+	UnaryOperators  []*Intrinsic
+	BinaryOperators []*Intrinsic
 	// Maximum number of open-types used across all builtins
 	MaxOpenTypes int
 	// Maximum number of open-numbers used across all builtins
@@ -39,12 +40,13 @@ type Sem struct {
 // New returns a new Sem
 func New() *Sem {
 	return &Sem{
-		Enums:        []*Enum{},
-		Types:        []*Type{},
-		TypeMatchers: []*TypeMatcher{},
-		EnumMatchers: []*EnumMatcher{},
-		Builtins:     []*Intrinsic{},
-		Operators:    []*Intrinsic{},
+		Enums:           []*Enum{},
+		Types:           []*Type{},
+		TypeMatchers:    []*TypeMatcher{},
+		EnumMatchers:    []*EnumMatcher{},
+		Builtins:        []*Intrinsic{},
+		UnaryOperators:  []*Intrinsic{},
+		BinaryOperators: []*Intrinsic{},
 	}
 }