Fix snippet placeholder formatting #795
Merged
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This change fixes some ambiguity in our snippet placeholders to confirm
with stricter parsing rules in VS Code 1.12.0. Generally this requires
prefixing an index (
${1:Placeholder Text}
) anywhere that a placeholderis used so that the syntax isn't ambiguous with a variable name.
Snippet variables are a separate concept now.
Resolves #767.