ignore object props, make private annotations non-enumerable

src/ast/analyse.js

@@ -38,18 +38,16 @@ export default function analyse ( ast, magicString, module ) {
 	let previous = 0;
 
 	ast.body.forEach( statement => {
-		statement._defines = {};
-		statement._modifies = {};
-		statement._dependsOn = {};
-		statement._imported = false;
-
-		// link back to the module
-		statement._module = module;
+		Object.defineProperties( statement, {
+			_defines:   { value: {} },
+			_modifies:  { value: {} },
+			_dependsOn: { value: {} },
+			_imported:  { value: false, writable: true },
+			_module:    { value: module },
+			_source:    { value: magicString.snip( previous, statement.end ) }
+		});
 
-		// store the actual code, for easy regeneration
-		statement._source = magicString.snip( previous, statement.end );
 		previous = statement.end;
-
 		currentTopLevelStatement = statement; // so we can attach scoping info
 
 		walk( statement, {
@@ -132,6 +130,11 @@ export default function analyse ( ast, magicString, module ) {
 					return;
 				}
 
+				// disregard the `bar` in { bar: foo }
+				if ( parent.type === 'Property' && node !== parent.value ) {
+					return;
+				}
+
 				const definingScope = scope.findDefiningScope( node.name );
 
 				if ( ( !definingScope || definingScope.depth === 0 ) && !statement._defines[ node.name ] ) {