Use myArray as the variable name for an array (#211)

* Use myArray as the variable name for an array.

* Added TODO comment about localization.

Author: lizlooney

src/blocks/utils/variable.ts

@@ -61,7 +61,10 @@ export function varNameForType(type: string): string {
   if (alias) {
     type = alias;
   }
-  
+
+  // TODO(lizlooney): Should the prefix "my" in myTuple, myDict, myCallable, myArray, and my<type> be localized?
+  // TODO(lizlooney): Should variable names be lowerPascalCase or snake_case?
+
   if (type.startsWith('tuple[') || type.startsWith('Tuple[')) {
     return 'myTuple';
   }
@@ -76,8 +79,7 @@ export function varNameForType(type: string): string {
   }
   if (type.includes('[')) {
     // The type is an array.
-    // TODO(lizlooney): What's a good name for an array variable?
-    return '';
+    return 'myArray';
   }
   // If the type has a dot, it is an object and we should provide a variable
   // block for this type.