Bug 1573580 - Handle corner case which caused inline preview to stop working r=davidwalsh

Differential Revision: https://phabricator.services.mozilla.com/D41794

--HG--
extra : moz-landing-system : lando

devtools/client/debugger/src/actions/pause/inlinePreview.js

@@ -198,9 +198,9 @@ function getExpressionNameAndValue(
         const property: Object = properties.find(
           prop => prop.name === meta.property
         );
-        displayValue = property.contents.value;
+        displayValue = property && property.contents.value;
         displayName += `.${meta.property}`;
-      } else {
+      } else if (displayValue && displayValue.preview) {
         const { ownProperties } = displayValue.preview;
         for (const prop in ownProperties) {
           if (prop === meta.property) {

devtools/client/debugger/src/components/Editor/InlinePreview.js

@@ -22,7 +22,6 @@ class InlinePreview extends PureComponent<Props> {
   showInScopes(variable: string) {
     // TODO: focus on variable value in the scopes sidepanel
     // we will need more info from parent comp
-    console.log(`show ${variable}`);
   }
 
   render() {