Put re-loaded file back at start of load-history (bug#26837)

* src/lread.c (readevalloop): Fix the "whole buffer" check to
operate in the correct buffer.
(Feval_buffer): Move point back to the start after checking
for lexical binding.
* test/src/lread-tests.el (lread-test-bug26837): New test.
* test/data/somelib.el, test/data/somelib2.el: New test data files.

2 files changed, 14 insertions, 0 deletions

diff --git a/test/data/somelib.el b/test/data/somelib.el
new file mode 100644
index 00000000000..7b8d4037396
--- /dev/null
+++ b/test/data/somelib.el
@@ -0,0 +1,7 @@
+;;; -*- lexical-binding: t; -*-
+
+;; blah
+
+(defun somefunc () t)
+
+(provide 'somelib)
diff --git a/test/data/somelib2.el b/test/data/somelib2.el
new file mode 100644
index 00000000000..05156145a22
--- /dev/null
+++ b/test/data/somelib2.el
@@ -0,0 +1,7 @@
+;;; -*- lexical-binding: t; -*-
+
+;; blah
+
+(defun somefunc2 () t)
+
+(provide 'somelib2)