chore: typo fixes (#1546)

* chore: fix typos in comments/JSDoc.

* chore: fix typo in internal function name.

* chore: fix typos in test comments/descriptions/variable names.

packages/runtime-core/src/apiDefineComponent.ts

@@ -121,7 +121,7 @@ export function defineComponent<
     EE
   >
 ): ComponentPublicInstanceConstructor<
-  // array props technically doesn't place any contraints on props in TSX before,
+  // array props technically doesn't place any constraints on props in TSX before,
   // but now we can export array props in TSX
   CreateComponentPublicInstance<
     Readonly<{ [key in PropNames]?: any }>,

packages/runtime-core/src/componentProxy.ts

@@ -210,7 +210,7 @@ export const PublicInstanceProxyHandlers: ProxyHandler<any> = {
       appContext
     } = instance
 
-    // let @vue/reatvitiy know it should never observe Vue public instances.
+    // let @vue/reactivity know it should never observe Vue public instances.
     if (key === ReactiveFlags.SKIP) {
       return true
     }

packages/runtime-core/src/componentSlots.ts

@@ -38,7 +38,7 @@ export type RawSlots = {
   // internal, indicates compiler generated slots
   // we use a reserved property instead of a vnode patchFlag because the slots
   // object may be directly passed down to a child component in a manual
-  // render funciton, and the optimization hint need to be on the slot object
+  // render function, and the optimization hint need to be on the slot object
   // itself to be preserved.
   _?: 1
 }

packages/runtime-core/src/hydration.ts

@@ -80,7 +80,7 @@ export function createHydrationFunctions(
   ): Node | null => {
     const isFragmentStart = isComment(node) && node.data === '['
     const onMismatch = () =>
-      handleMismtach(
+      handleMismatch(
         node,
         vnode,
         parentComponent,
@@ -397,7 +397,7 @@ export function createHydrationFunctions(
     }
   }
 
-  const handleMismtach = (
+  const handleMismatch = (
     node: Node,
     vnode: VNode,
     parentComponent: ComponentInternalInstance | null,