extend FLines* tests

Author: alexrford

ql/test/query-tests/metrics/FLines/Empty.rb

@@ -1 +1,2 @@
-| FLines.rb:0:0:0:0 | FLines.rb | 25 |
+| FLines.rb:0:0:0:0 | FLines.rb | 34 |
+| Empty.rb:0:0:0:0 | Empty.rb | 0 |

ql/test/query-tests/metrics/FLines/FLines.expected

@@ -1,8 +1,13 @@
 # frozen_string_literal: true
 
+=begin
+some preprocessing here
+and here
+=end
+
 class FLinesTest
 
-    def foo
+    def foo(bar)
       # This is a comment
       # and another
 
@@ -16,9 +21,13 @@ def foo
 
 ESCAPE
 
+      some_other_string = "line 1
+      line" + bar
+
       p some_string
+      p some_other_string
 
-      7
+      some_string + some_other_string
     end
 
 

ql/test/query-tests/metrics/FLines/FLines.rb

@@ -1 +1,2 @@
-| FLines.rb:0:0:0:0 | FLines.rb | 15 |
+| FLines.rb:0:0:0:0 | FLines.rb | 18 |
+| Empty.rb:0:0:0:0 | Empty.rb | 0 |

ql/test/query-tests/metrics/FLines/FLinesOfCode.expected

@@ -1 +1,2 @@
-| FLines.rb:0:0:0:0 | FLines.rb | 3 |
+| FLines.rb:0:0:0:0 | FLines.rb | 7 |
+| Empty.rb:0:0:0:0 | Empty.rb | 0 |