[WASM] Fix async/await in config loading (#54652)

* Fixed config issue

* Updated Hot Reload test

Author: Daniel-Genkin

src/mono/sample/mbr/browser/runtime.js

@@ -5,7 +5,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     // Called when the runtime is initialized and wasm is ready

src/mono/sample/wasm/browser-bench/runtime.js

@@ -4,7 +4,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     // Called when the runtime is initialized and wasm is ready

src/mono/sample/wasm/browser-profile/runtime.js

@@ -5,7 +5,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     // Called when the runtime is initialized and wasm is ready

src/mono/sample/wasm/browser/runtime.js

@@ -6,7 +6,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     // Called when the runtime is initialized and wasm is ready

src/mono/wasm/debugger/tests/debugger-test/runtime-debugger.js

@@ -5,7 +5,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     // Called when the runtime is initialized and wasm is ready

src/mono/wasm/runtime-test.js

@@ -211,7 +211,7 @@ var Module = {
 	printErr,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
 	onAbort: function(x) {

src/mono/wasm/runtime/library_mono.js

@@ -1451,9 +1451,9 @@ var MonoSupportLib = {
 				} else { // shell or worker
 					config = JSON.parse(read(configFilePath)); // read is a v8 debugger command
 				}
-				return config;
+				Module.config = config;
 			} catch(e) {
-				return {message: "failed to load config file", error: e};
+				Module.config = {message: "failed to load config file", error: e};
 			} finally {
 				Module.removeRunDependency(configFilePath);
 			}

src/tests/FunctionalTests/WebAssembly/Browser/AOT/runtime.js

@@ -6,7 +6,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     onRuntimeInitialized: function () {

src/tests/FunctionalTests/WebAssembly/Browser/HotReload/runtime.js

@@ -6,7 +6,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     onRuntimeInitialized: function () {

src/tests/FunctionalTests/WebAssembly/Browser/NormalInterp/runtime.js

@@ -6,7 +6,7 @@ var Module = {
     config: null,
 
     preInit: async function() {
-        Module.config = await MONO.mono_wasm_load_config("./mono-config.json");
+        await MONO.mono_wasm_load_config("./mono-config.json"); // sets Module.config implicitly
     },
 
     onRuntimeInitialized: function () {