10c - adfToPlainMarkdown and plainMarkdownToAdf exported, whitespace-only leaves trimmed at a line end

src/markdown/emit/plain-reduction.test.ts

@@ -229,6 +229,7 @@ test('spells a node no row names, or one standing where no spelling holds it, as
   assert.equal(plain(bulletList(said('stray'), item(said('b')), text('loose'))), '- stray\n- b\n- loose\n')
   assert.equal(plain(bulletList()), '')
   assert.equal(plain(bulletList(item({ content: [text('a\n  \nb')], type: 'codeBlock' }))), '- ```\n  a\n\n  b\n  ```\n')
+  assert.equal(plain(bulletList(item({ content: [text(' ')], type: 'codeBlock' }))), '- ```\n  ```\n')
   assert.equal(plain(bulletList(item(node('rule', {}), node('rule', {}), said('Install')), item(said('Configure')))), '- Install\n- Configure\n')
   assert.equal(plain(bulletList(item(node('rule', {}), node('rule', {})), item(said('Configure')))), '-\n- Configure\n')
   assert.equal(plain(bulletList(item(bulletList(item(bulletList(item())))))), '- -\n')
@@ -285,6 +286,7 @@ test('breaks a line at a newline and trims whitespace at every edge CommonMark s
   assert.equal(plain(paragraph(text(' \n a \n b\n'))), 'a\\\nb\n')
   assert.equal(plain(paragraph({ type: 'hardBreak' }, text('a'), { attrs: { text: '\n' }, type: 'hardBreak' }, text('b'), { type: 'hardBreak' })), 'a\\\nb\n')
   assert.equal(plain(paragraph(text('a'), text(' b ', strong), text('c'))), 'a **b** c\n')
+  assert.equal(plain(paragraph(text(' '), text('b', strong), text(' \n'), text('c', strong), text(' '))), '**b**\\\n**c**\n')
   assert.equal(plain(paragraph(text('a'), text(' b ', em, strong), text(' ', em), text('c', em))), 'a _**b**  c_\n')
   assert.equal(plain(paragraph(text(' x ', code))), '`  x  `\n')
   assert.equal(plain(node('heading', { level: 1 }, text(' h\ni '))), '# h i\n')