JoostK bbf61fc2be fix(compiler): include parenthesis in expression source spans (#40740)
The parser does not include parenthesis in the AST, so if a LHS
expression would be parenthesized then its start span would start
after the opening parenthesis. Previously, some parent AST nodes would
be created with the start span of its LHS as its own start, so this
resulted in the parent AST node not encompassing the opening parenthesis
in its source span. This commit fixes the issue by capturing the start
index prior to parsing a child AST tree, which is then used as the
start of the source span of the the parent AST node that is parsed.

Fixes #40721

PR Close #40740
2021-02-10 11:07:11 -08:00
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