fix(lsp): trailing blank line when edit inserts past end of buffer #40133

Problem:
A text edit positioned entirely past the last buffer line, with
newText ending in a newline, leaves a stray blank line: the
past-the-end path appends the trailing empty fragment produced by
vim.split() and does not set has_eol_text_edit, so the end-of-buffer
cleanup is skipped. Formatting servers emit such edits whenever
formatting moves text to the end of a document.

Regression from ec94014cd1 (#20137), which split the past-the-end
fast path off the clamp path that sets the flag.

Solution:
Set has_eol_text_edit in the past-the-end path, like the adjacent
path that clamps end_row.

0 files changed, 0 insertions, 0 deletions