Fix infinite loop computing ERB dependencies with non-trailing interp…

…olations

Calling
```ruby
ActionView::DependencyTracker::ERBTracker#add_static_dependency( []  "test/\#{bucket.bucketable_name.pluralize}/status/show" "\"")
```
Will loop indefinitely. Fixes it by parsing only template strings with a trailing template interpolation.

actionview/lib/action_view/dependency_tracker/erb_tracker.rb

@@ -116,7 +116,7 @@ def add_dynamic_dependency(dependencies, dependency)
         end
 
         def add_static_dependency(dependencies, dependency, quote_type)
-          if quote_type == '"' && dependency.include?('#{')
+          if quote_type == '"' && dependency.include?('#{') && dependency.end_with?("}")
             scanner = StringScanner.new(dependency)
 
             wildcard_dependency = +""

actionview/test/template/dependency_tracker_test.rb

@@ -243,6 +243,18 @@ class ERBTrackerTest < ActiveSupport::TestCase
   def make_tracker(name, template, view_paths = nil)
     ActionView::DependencyTracker::ERBTracker.new(name, template, view_paths)
   end
+
+  def test_dependencies_with_interpolation_non_trailing
+    view_paths = ActionView::PathSet.new([File.expand_path("../fixtures/digestor", __dir__)])
+
+    template = FakeTemplate.new(%q{
+      <%= render "#{type}/comments" %>
+    }, :erb)
+
+    tracker = make_tracker("interpolation/_string", template, view_paths)
+
+    assert_equal [ "\#{type}/comments" ], tracker.dependencies
+  end
 end
 
 module RubyTrackerTests