innerHTML and outerHTML are returning tag names in all caps

[ekashida]

Description

lwc@0.23.2

foo.innerHTML => "<div><p>foo text</p><slot name="bar"><p slot="bar">slotted text</p></slot></div>"
foo.outerHTML => "<c-foo><div><p>foo text</p><slot name="bar"><p slot="bar">slotted text</p></slot></div></c-foo>"

lwc@0.24.0

foo.innerHTML => "<P slot="bar">slotted text</P>"
foo.outerHTML => "<C-FOO><P slot="bar">slotted text</P></C-FOO>"```