fix AST test

Author: WebFreak001

test/ast_checks/interpolated_string.d

@@ -1,4 +1,4 @@
 void foo()
 {
-	writeln(i"Hello $name, you have $$(wealth) in your account right now");
+	writeln(i"Hello name, you have $$(wealth) in your account right now");
 }

test/ast_checks/interpolated_string.txt

@@ -1,7 +1,5 @@
 //interpolatedString[@startQuote='i"']
 //interpolatedString[@endQuote='"']
-//interpolatedString/text[text()='Hello ']
-//interpolatedString/text[text()=', you have $']
+//interpolatedString/text[text()='Hello name, you have $']
 //interpolatedString/text[text()=' in your account right now']
-//interpolatedString/variable[text()='name']
 //interpolatedString/expression/unaryExpression