Use consistent separator for test files

test/corpus/control-flow.txt

@@ -0,0 +1,143 @@
+================================================================================
+If then else
+================================================================================
+
+if 12 then 27 else 42
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (if_expression
+    condition: (integer_literal)
+    consequence: (integer_literal)
+    alternative: (integer_literal)))
+
+================================================================================
+If then
+================================================================================
+
+if 12 then 27
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (if_expression
+    condition: (integer_literal)
+    consequence: (integer_literal)))
+
+================================================================================
+Dangling else
+================================================================================
+
+if 12 then if 27 then 42 else "nope"
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (if_expression
+    condition: (integer_literal)
+    consequence: (if_expression
+      condition: (integer_literal)
+      consequence: (integer_literal)
+      alternative: (string_literal))))
+
+================================================================================
+While
+================================================================================
+
+while 12 do 27
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (while_expression
+    condition: (integer_literal)
+    body: (integer_literal)))
+
+================================================================================
+For
+================================================================================
+
+for i := 12 to nil do "42"
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (for_expression
+    index: (identifier)
+    (operator)
+    start: (integer_literal)
+    end: (nil_literal)
+    body: (string_literal)))
+
+================================================================================
+For no index
+================================================================================
+
+for 12 to nil do "42"
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (ERROR
+    (identifier)
+    (identifier)
+    (nil_literal))
+  (string_literal))
+
+================================================================================
+For no end
+================================================================================
+
+for 12 do "42"
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (ERROR
+    (identifier)
+    (identifier))
+  (string_literal))
+
+================================================================================
+For no body
+================================================================================
+
+for 12 to nil
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (ERROR
+    (identifier)
+    (identifier))
+  (nil_literal))
+
+================================================================================
+Break
+================================================================================
+
+break
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (break_expression))
+
+================================================================================
+Break in loops
+================================================================================
+
+for i := break to break do while break do break
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (for_expression
+    (identifier)
+    (operator)
+    (break_expression)
+    (break_expression)
+    (while_expression
+      (break_expression)
+      (break_expression))))