[vm] escape path when creating process on Windows

path may contain spaces. When it is passed into CreatProcessW, it will interpret in several ways. Escape path for CreateProcessW to remove ambiguity.
The api doc of CreateProcessW: https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-createprocessw#parameters

Bug: #37751
Change-Id: Ia3486d9a8c6b38c526c651dd6a801e0b8dad8655
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112267
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zichang Guo <zichangguo@google.com>

runtime/bin/process_patch.dart

@@ -233,7 +233,14 @@ class _ProcessImpl extends _ProcessImplNativeWrapper implements Process {
     if (path is! String) {
       throw new ArgumentError("Path is not a String: $path");
     }
-    _path = path;
+
+    if (Platform.isWindows) {
+      // Escape paths that may contain spaces
+      // Bug: https://github.com/dart-lang/sdk/issues/37751
+      _path = _windowsArgumentEscape(path);
+    } else {
+      _path = path;
+    }
 
     if (arguments is! List) {
       throw new ArgumentError("Arguments is not a List: $arguments");