refactor(ivy): merge canInsertNativeNode and getParentNative (#28011)

Previously the canInsertNativeNode and getRenderParent functions had almost
_exaclty_ the same logic. What was worse that getRenderParent was calling
canInsertNativeNode thus executing the same, non-trivial logic twice.

This commit merges canInsertNativeNode and getRenderParent into one function.
Now getRenderParent will return a native parent or null if a node can't be
inserted (content projection, root of a view that is not inserted etc.).

PR Close #28011

packages/core/test/bundling/hello_world/bundle.golden_symbols.json

@@ -155,15 +155,6 @@
   {
     "name": "callHooks"
   },
-  {
-    "name": "canInsertNativeChildOfElement"
-  },
-  {
-    "name": "canInsertNativeChildOfView"
-  },
-  {
-    "name": "canInsertNativeNode"
-  },
   {
     "name": "checkNoChangesMode"
   },
@@ -299,9 +290,6 @@
   {
     "name": "getParentInjectorViewOffset"
   },
-  {
-    "name": "getParentNative"
-  },
   {
     "name": "getPipeDef"
   },

packages/core/test/bundling/todo/bundle.golden_symbols.json

@@ -410,15 +410,6 @@
   {
     "name": "callHooks"
   },
-  {
-    "name": "canInsertNativeChildOfElement"
-  },
-  {
-    "name": "canInsertNativeChildOfView"
-  },
-  {
-    "name": "canInsertNativeNode"
-  },
   {
     "name": "checkNoChanges"
   },
@@ -749,9 +740,6 @@
   {
     "name": "getParentInjectorViewOffset"
   },
-  {
-    "name": "getParentNative"
-  },
   {
     "name": "getParentState"
   },