The issue with this is that operations on text don't necessarily preserve a valid AST. Doing `git merge` on the plain text of a source file may result in invali

The issue with this is that operations on text don't necessarily preserve a valid AST. Doing `git merge` on the plain text of a source file may result in invalid code, at which point you have other annoying questions to answer about how to handle text that doesn't parse into a valid AST.