Prune outdated SSA implementation

SSA will be added back from the ssa branch once development is finished.

Fix number parsing

v1.4.11

Fix number parsing

Fix reserved keyword usage in table operations

v1.4.10

Fix reserved keyword usage in table operations

Add goto and label formatting

v1.4.9

Add goto and label formatting

Fix bitwise operators not being formatted

v1.4.8

Fix bitwise operators not being formatted

Fix a bunch of formatting errors

v1.4.7

Move beautify_test.go to tests

Fix local function formatting

v1.4.6

Fix local function formatting

Fix function call expr not wrapping the receiver

v1.4.5

Fix function call expr not wrapping the receiver

Fix string escaping and function calls with a receiver

v1.4.4

Add string escaping tests

Fix match

v1.4.3

Fix match