BridgeJS: Add reusable intrinsics for stack-based types

Author: krodak

Benchmarks/Sources/Generated/BridgeJS.swift

@@ -154,7 +154,7 @@ export function main(args) {
         "// To update this file, just rebuild your project or run",
         "// `swift package bridge-js`.",
         "",
-        "@_spi(Experimental) import JavaScriptKit",
+        "@_spi(Experimental) @_spi(BridgeJS) import JavaScriptKit",
         "",
         "",
     ].join("\n");

Plugins/BridgeJS/Sources/BridgeJSCore/ExportSwift.swift

@@ -399,7 +399,7 @@ export class TypeProcessor {
                 this.swiftLines.push(`    case ${this.renderIdentifier(name)} = "${raw.replaceAll("\"", "\\\\\"")}"`);
             }
             this.swiftLines.push("}");
-            this.swiftLines.push(`extension ${swiftEnumName}: _BridgedSwiftEnumNoPayload {}`);
+            this.swiftLines.push(`extension ${swiftEnumName}: _BridgedSwiftEnumNoPayload, _BridgedSwiftRawValueEnum {}`);
             this.swiftLines.push("");
             return;
         }
@@ -410,7 +410,7 @@ export class TypeProcessor {
                 this.swiftLines.push(`    case ${this.renderIdentifier(name)} = ${raw}`);
             }
             this.swiftLines.push("}");
-            this.swiftLines.push(`extension ${swiftEnumName}: _BridgedSwiftEnumNoPayload {}`);
+            this.swiftLines.push(`extension ${swiftEnumName}: _BridgedSwiftEnumNoPayload, _BridgedSwiftRawValueEnum {}`);
             this.swiftLines.push("");
             return;
         }