Revert "perf(document): remove some unnecessary instantiations of opt…

…ions objects re: #11541"

This reverts commit 01fc014.

lib/document.js

@@ -1044,7 +1044,8 @@ Document.prototype.$set = function $set(path, val, type, options) {
     type = undefined;
   }
 
-  const merge = options && options.merge;
+  options = options || {};
+  const merge = options.merge;
   const adhoc = type && type !== true;
   const constructing = type === true;
   let adhocs;
@@ -1054,7 +1055,7 @@ Document.prototype.$set = function $set(path, val, type, options) {
   let key;
   let prefix;
 
-  const strict = options && options.strict != null
+  const strict = 'strict' in options
     ? options.strict
     : this.$__.strictMode;
 
@@ -1085,7 +1086,7 @@ Document.prototype.$set = function $set(path, val, type, options) {
 
     // `_skipMinimizeTopLevel` is because we may have deleted the top-level
     // nested key to ensure key order.
-    const _skipMinimizeTopLevel = (options && options._skipMinimizeTopLevel) || false;
+    const _skipMinimizeTopLevel = options._skipMinimizeTopLevel || false;
     if (len === 0 && _skipMinimizeTopLevel) {
       delete options._skipMinimizeTopLevel;
       if (val) {
@@ -1555,7 +1556,7 @@ Document.prototype.set = Document.prototype.$set;
  */
 
 Document.prototype.$__shouldModify = function(pathToMark, path, options, constructing, parts, schema, val, priorVal) {
-  if (options && options._skipMarkModified) {
+  if (options._skipMarkModified) {
     return false;
   }
   if (this.$isNew) {
@@ -1732,6 +1733,7 @@ Document.prototype.$__setValue = function(path, val) {
 
 Document.prototype.get = function(path, type, options) {
   let adhoc;
+  options = options || {};
   if (type) {
     adhoc = this.$__schema.interpretAsType(path, type, this.$__schema.options);
   }
@@ -1778,9 +1780,9 @@ Document.prototype.get = function(path, type, options) {
     obj = adhoc.cast(obj);
   }
 
-  if (schema != null && options && options.getters !== false) {
+  if (schema != null && options.getters !== false) {
     obj = schema.applyGetters(obj, this);
-  } else if (this.$__schema.nested[path] && options && options.virtuals) {
+  } else if (this.$__schema.nested[path] && options.virtuals) {
     // Might need to apply virtuals if this is a nested path
     return applyVirtuals(this, utils.clone(obj) || {}, { path: path });
   }
@@ -1978,6 +1980,8 @@ function _isEmpty(v) {
  */
 
 Document.prototype.modifiedPaths = function(options) {
+  options = options || {};
+
   const directModifiedPaths = Object.keys(this.$__.activePaths.states.modify);
   const result = new Set();
 
@@ -1994,7 +1998,7 @@ Document.prototype.modifiedPaths = function(options) {
       result.add(parts[j]);
     }
 
-    if (!options || !options.includeChildren) {
+    if (!options.includeChildren) {
       continue;
     }