tint: Minor no-op cleanup changes

Change-Id: I91ad6044e7809ed2deab0fbd4417da90c7870d81
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99705
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
diff --git a/src/tint/writer/hlsl/generator_impl.cc b/src/tint/writer/hlsl/generator_impl.cc
index 444746c..a7367dc 100644
--- a/src/tint/writer/hlsl/generator_impl.cc
+++ b/src/tint/writer/hlsl/generator_impl.cc
@@ -2631,32 +2631,16 @@
         }
     }
     return Switch(
-        expr,
-        [&](const ast::IndexAccessorExpression* a) {  //
-            return EmitIndexAccessor(out, a);
-        },
-        [&](const ast::BinaryExpression* b) {  //
-            return EmitBinary(out, b);
-        },
-        [&](const ast::BitcastExpression* b) {  //
-            return EmitBitcast(out, b);
-        },
-        [&](const ast::CallExpression* c) {  //
-            return EmitCall(out, c);
-        },
-        [&](const ast::IdentifierExpression* i) {  //
-            return EmitIdentifier(out, i);
-        },
-        [&](const ast::LiteralExpression* l) {  //
-            return EmitLiteral(out, l);
-        },
-        [&](const ast::MemberAccessorExpression* m) {  //
-            return EmitMemberAccessor(out, m);
-        },
-        [&](const ast::UnaryOpExpression* u) {  //
-            return EmitUnaryOp(out, u);
-        },
-        [&](Default) {  //
+        expr,  //
+        [&](const ast::IndexAccessorExpression* a) { return EmitIndexAccessor(out, a); },
+        [&](const ast::BinaryExpression* b) { return EmitBinary(out, b); },
+        [&](const ast::BitcastExpression* b) { return EmitBitcast(out, b); },
+        [&](const ast::CallExpression* c) { return EmitCall(out, c); },
+        [&](const ast::IdentifierExpression* i) { return EmitIdentifier(out, i); },
+        [&](const ast::LiteralExpression* l) { return EmitLiteral(out, l); },
+        [&](const ast::MemberAccessorExpression* m) { return EmitMemberAccessor(out, m); },
+        [&](const ast::UnaryOpExpression* u) { return EmitUnaryOp(out, u); },
+        [&](Default) {
             diagnostics_.add_error(diag::System::Writer, "unknown expression type: " +
                                                              std::string(expr->TypeInfo().name));
             return false;