Fix all "goto-line" is interactive-only warnings

Fixes:

    tests/purescript-sort-imports-tests.el:31:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:41:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:51:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:61:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:73:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:86:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:99:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.
    tests/purescript-sort-imports-tests.el:118:14: Warning: ‘goto-line’ is for interactive use only; use ‘forward-line’ instead.

Author: Hi-Angel

tests/purescript-sort-imports-tests.el

@@ -28,7 +28,7 @@
 (ert-deftest single-line ()
   (should (with-temp-buffer
             (insert "import A\n")
-            (goto-line 1)
+            (goto-char (point-min))
             (purescript-sort-imports)
             (string= (buffer-string)
                      "import A\n"))))
@@ -38,7 +38,7 @@
             (insert "import A
 import B
 ")
-            (goto-line 1)
+            (goto-char (point-min))
             (purescript-sort-imports)
             (string= (buffer-string)
                      "import A
@@ -48,7 +48,7 @@ import B
             (insert "import qualified A
 import B
 ")
-            (goto-line 1)
+            (goto-char (point-min))
             (purescript-sort-imports)
             (string= (buffer-string)
                      "import qualified A
@@ -58,7 +58,7 @@ import B
             (insert "import qualified \"mtl\" A
 import B
 ")
-            (goto-line 1)
+            (goto-char (point-min))
             (purescript-sort-imports)
             (string= (buffer-string)
                      "import qualified \"mtl\" A
@@ -70,7 +70,7 @@ import B
             (insert "import B
 import A
 ")
-            (goto-line 1)
+            (goto-char (point-min))
             (purescript-sort-imports)
             (string= (buffer-string)
                      "import A
@@ -83,7 +83,9 @@ import B
 import B
 import A
 ")
-            (goto-line 2)
+            ;; test at line 2
+            (goto-char (point-min))
+            (forward-line 1)
             (purescript-sort-imports)
             (string= (buffer-string)
                      "module A where
@@ -96,7 +98,9 @@ import B
 import B
 import A
 ")
-            (goto-line 3)
+            ;; test at line 3
+            (goto-char (point-min))
+            (forward-line 2)
             (purescript-sort-imports)
             (string= (buffer-string)
                      "module C where
@@ -115,7 +119,7 @@ import Data.Aeson.Parser.Internal (decodeWith, decodeStrictWith,
 import qualified Data.ByteString as B
 import qualified Data.ByteString.Lazy as L
 ")
-            (goto-line 1)
+            (goto-char (point-min))
             (purescript-sort-imports)
             (string= (buffer-string)
                      "import Data.Aeson.Encode (encode)