Update bim and refer to legacyNamespace (microsoft#1157)

Fixes microsoft#1155

Author: saschanaz

package-lock.json

@@ -48,13 +48,6 @@ export const forceKeepAlive: Record<string, string[]> = {
   Request: ["keepalive"],
   RTCDtlsTransport: ["onstatechange", "state"],
   RTCPeerConnection: ["canTrickleIceCandidates"],
-  WebAssembly: [
-    "compile",
-    "compileStreaming",
-    "instantiate",
-    "instantiateStreaming",
-    "validate",
-  ],
   WebGLRenderingContextBase: ["lineWidth"],
   WebGL2RenderingContextOverloads: [
     // These are implemented in WebGLRenderingContext and WebGL2RenderingContext separately
@@ -76,11 +69,4 @@ export const forceKeepAlive: Record<string, string[]> = {
   ],
   WindowEventHandlers: ["onoffline", "ononline", "onpagehide", "onpageshow"],
   WorkerGlobalScope: ["onrejectionhandled", "onunhandledrejection"],
-  // (WebAssembly namespace members)
-  // TODO: Shouldn't these be inside "WebAssembly"?
-  Instance: ["exports"],
-  Global: ["value", "valueOf"],
-  Memory: ["buffer", "grow"],
-  Module: ["customSections", "exports", "imports"],
-  Table: ["length", "get", "grow", "set"],
 };

src/build/bcd/keep-alive.ts

@@ -57,7 +57,11 @@ function mapInterfaceLike(
   i: Browser.Interface,
   mapper: (data: DataToMap) => any
 ) {
-  const data = i.mixin ? api.__mixins[name] : api[name];
+  const data = i.mixin
+    ? api.__mixins[name]
+    : i.legacyNamespace
+    ? api[i.legacyNamespace][name]
+    : api[name];
   const intCompat = data?.__compat;
   const mapped = mapper({ key: name, compat: intCompat, mixin: !!i.mixin });
   if (!data) {